Penggayaan APA
ZIMDAHL, Robert L.. (2015).
Six chemicals that changed agriculture .
Amsterdam:
Elsevier.
Chicago Style
ZIMDAHL, Robert L..
Six chemicals that changed agriculture.
Amsterdam:
Elsevier,
2015.
Buku.
MLA Style
ZIMDAHL, Robert L..
Six chemicals that changed agriculture.
Amsterdam:
Elsevier,
2015.
Buku.
Turabian Style
ZIMDAHL, Robert L..
Six chemicals that changed agriculture.
Amsterdam:
Elsevier,
2015.
Buku.