APA
Azam-Ali S. N., Squire G. R., . (2001). Principles of tropical agronomy. Oxon: CABI.
Chicago
Azam-Ali S N, Squire G R, . 2001. Principles of tropical agronomy. Oxon: CABI.
Harvard
Azam-Ali S. N., Squire G. R., . (2001). Principles of tropical agronomy. Oxon: CABI.
MLA
Azam-Ali S N, Squire G R, . Principles of tropical agronomy. Oxon: CABI. 2001.