Penggayaan APA
Weaver, Robert J.. (1972).
Plant growth substances in agriculture .
San Francisco:
W. H. Freeman and Company.
Chicago Style
Weaver, Robert J..
Plant growth substances in agriculture.
San Francisco:
W. H. Freeman and Company,
1972.
Buku.
MLA Style
Weaver, Robert J..
Plant growth substances in agriculture.
San Francisco:
W. H. Freeman and Company,
1972.
Buku.
Turabian Style
Weaver, Robert J..
Plant growth substances in agriculture.
San Francisco:
W. H. Freeman and Company,
1972.
Buku.