Gaya APA

Barley, K., D.R, I, G, R, I, L. (1975). The agronomy of annual crops . Hongkong: Hongkong: Nippon; 1975.

Gaya MLA

Barley, K.P., D.R, I., Graham,, R.D, II., Laing,. "The agronomy of annual crops". Hongkong: Hongkong: Nippon; 1975, 1975. Text.