Gaya APA
COLLINGS, Gilbearth H.. (1955).
Commercial Fertilizers .
New York:
McGRAW-HILL BOOK COMPANY.
Gaya Chicago
COLLINGS, Gilbearth H..
Commercial Fertilizers.
New York:
McGRAW-HILL BOOK COMPANY,
1955.
Teks.
Gaya MLA
COLLINGS, Gilbearth H..
Commercial Fertilizers.
New York:
McGRAW-HILL BOOK COMPANY,
1955.
Teks.
Gaya Turabian
COLLINGS, Gilbearth H..
Commercial Fertilizers.
New York:
McGRAW-HILL BOOK COMPANY,
1955.
Teks.