APA Style
Peter Tompkins, Christopher Bird. (1998).
Secrets of The Soil .
USA:
Millenium Science Series.
Chicago Style
Peter Tompkins, Christopher Bird.
Secrets of The Soil.
USA:
Millenium Science Series,
1998.
Buku.
MLA Style
Peter Tompkins, Christopher Bird.
Secrets of The Soil.
USA:
Millenium Science Series,
1998.
Buku.
Turabian Style
Peter Tompkins, Christopher Bird.
Secrets of The Soil.
USA:
Millenium Science Series,
1998.
Buku.