APA引文

Ritson,Christopher. (1977). Agricultural economics: Principles and policy. Granada Publishing.

Chicago Edition Citation

Ritson,Christopher. Agricultural Economics: Principles and Policy. London: Granada Publishing, 1977.

MLA引文

Ritson,Christopher. Agricultural Economics: Principles and Policy. Granada Publishing, 1977.

警告：這些引文格式不一定是100％准確.