APA Style
Gupfa, P.K. (2007).
Soil,Plant, Water and fertilizer analysis .
American:
AGROBIOS (INDIA).
Chicago Style
Gupfa, P.K.
Soil,Plant, Water and fertilizer analysis.
American:
AGROBIOS (INDIA),
2007.
Buku Teks.
MLA Style
Gupfa, P.K.
Soil,Plant, Water and fertilizer analysis.
American:
AGROBIOS (INDIA),
2007.
Buku Teks.
Turabian Style
Gupfa, P.K.
Soil,Plant, Water and fertilizer analysis.
American:
AGROBIOS (INDIA),
2007.
Buku Teks.