Gaya APA
A., C, F.
(1966).
Special English Agriculture Book 1 : Soils
(
Edisi Satu)
.
USA:
The Macmillan Company.
Gaya MLA
A., Coffman, F..
"Special English Agriculture Book 1 : Soils".
Edisi Satu
USA:
The Macmillan Company,
1966.
Text.