Gaya APA
HASWELL, MARGARET R.. (1973).
Tropical farming economics .
London:
Longman.
Gaya Chicago
HASWELL, MARGARET R..
Tropical farming economics.
London:
Longman,
1973.
.
Gaya MLA
HASWELL, MARGARET R..
Tropical farming economics.
London:
Longman,
1973.
.
Gaya Turabian
HASWELL, MARGARET R..
Tropical farming economics.
London:
Longman,
1973.
.