% The fields.

@article {apa-article,
    author   = "...",
    comment  = "...",
    crossref = "...",
    editor   = "...",
    issue    = "...",
    journal  = "...",
    note     = "...",
    pages    = "...",
    title    = "...",
    volume   = "...",
    year     = "...",
}

@book {apa-book,
    author    = "...",
    comment   = "...",
    chapter   = "...",
    crossref  = "...",
    editor    = "...",
    series    = "...",
    pages     = "...",
    publisher = "...",
    volume    = "...",
    year      = "...",
}