Generic:

@article·{i<Ref·ID>,¶
··author····=·{<Authors,·primary>},|¶
··title·····=·{<Title,·primary>},|¶
··author2···=·{<Authors,·secondary>},|¶
··title2····=·{<Title,·secondary>},|¶
··journal···=·{<Periodical>},|¶
··volume····=·{<Volume>},|¶
··number····=·{<Issue>},|¶
··pages·····=·{<Page·Numbers>},|¶
··year······=·{<Date,·primary>},|¶
··address···=·{<Pub·Place>},|¶
··publisher·=·{<Publisher>},|¶
··series····=·{<Title,·series>},|¶
··editor····=·{<Authors,·series>},|¶
··date2·····=·{<Date,·secondary>},|¶
··reftype···=·{<Ref·Type>},|¶
··keywords··=·{<Keywords>},|¶
··note······=·{<Notes>},|¶
}


Book Chapter:

@inbook·{i<Ref·ID>,¶
··author····=·{<Authors,·primary>},|¶
··author2···=·{<Authors,·secondary>},|¶
··title2····=·{<Title,·secondary>},|¶
··isbn······=·{<ISBN>},|¶
··title·····=·{<Chapter·Title>}|¶
··booktitle·=·{<Book·Title>},|¶
··chapter···=·{<Chapter·Num>},|¶
··volume····=·{<Volume>},|¶
··number····=·{<Issue>},|¶
··pages·····=·{<Page·Numbers>},|¶
··year······=·{<Date,·primary>},|¶
··address···=·{<Pub·Place>},|¶
··publisher·=·{<Publisher>},|¶
··series····=·{<Title,·series>},|¶
··editor····=·{<Authors,·series>},|¶
··date2·····=·{<Date,·secondary>},|¶
··reftype···=·{<Ref·Type>},|¶
··keywords··=·{<Keywords>},|¶
··note······=·{<Notes>},¶
}


Whole book:

@book·{i<Ref·ID>,¶
··author····=·{<Authors,·primary>},|¶
··title·····=·{<Title,·primary>},|¶
··author2···=·{<Authors,·secondary>},|¶
··title2····=·{<Title,·secondary>},|¶
··journal···=·{<Periodical>},|¶
··volume····=·{<Volume>},|¶
··number····=·{<Issue>},|¶
··pages·····=·{<Page·Numbers>},|¶
··year······=·{<Date,·primary>},|¶
··address···=·{<Pub·Place>},|¶
··publisher·=·{<Publisher>},|¶
··series····=·{<Title,·series>},|¶
··editor····=·{<Authors,·series>},|¶
··date2·····=·{<Date,·secondary>},|¶
··reftype···=·{<Ref·Type>},|¶
··keywords··=·{<Keywords>},|¶
··note······=·{<Notes>},¶
}


Thesis:

@phdthesis·{i<Ref·ID>,¶
··author····=·{<Authors,·primary>},|¶
··title·····=·{<Title,·primary>},|¶
··author2···=·{<Authors,·secondary>},|¶
··title2····=·{<Title,·secondary>},|¶
··journal···=·{<Periodical>},|¶
··volume····=·{<Volume>},|¶
··number····=·{<Issue>},|¶
··pages·····=·{<Page·Numbers>},|¶
··year······=·{<Date,·primary>},|¶
··address···=·{<Pub·Place>},|¶
··publisher·=·{<Publisher>},|¶
··series····=·{<Title,·series>},|¶
··editor····=·{<Authors,·series>},|¶
··date2·····=·{<Date,·secondary>},|¶
··reftype···=·{<Ref·Type>},|¶
··keywords··=·{<Keywords>},|¶
··note······=·{<Notes>},¶
}


And fill in the others likewise if you need them.