APA-referens

Day, R. H., & Singh, Z. (1977). Economic development adoptive process: The green revolution in the Indian Punjab. Cambridge University press.

Chicago-stil citat

Day, Richard H., och Ziderjit Singh. Economic Development Adoptive Process: The Green Revolution in the Indian Punjab. Cambridge: Cambridge University press, 1977.

MLA-referens

Day, Richard H., och Ziderjit Singh. Economic Development Adoptive Process: The Green Revolution in the Indian Punjab. Cambridge University press, 1977.