Παραπομπή APA

Day,Richard H, & Singh,Inderjit. (1977). Economic development as an adaptive process: The green revolution in the Indian Punjab. Cambridge University Press.

Παραπομπή Chicago Style

Day,Richard H, και Singh,Inderjit. Economic Development as an Adaptive Process: The Green Revolution in the Indian Punjab. Cambridge: Cambridge University Press, 1977.

Παραπομπή MLA

Day,Richard H, και Singh,Inderjit. Economic Development as an Adaptive Process: The Green Revolution in the Indian Punjab. Cambridge University Press, 1977.