APA-viite

Sadhu, A., & Singh, A. (1983). Fundamentals of agricultural economics. 1983.

Chicago-tyylinen lähdeviittaus

Sadhu, A.N, ja Amarjit Singh. Fundamentals of Agricultural Economics. Himalaya publishing house: 1983, 1983.

MLA-viite

Sadhu, A.N, ja Amarjit Singh. Fundamentals of Agricultural Economics. 1983, 1983.