Παραπομπή APA

Seghal,J L, Mandal ,C, & Mandal,D K. (1992). Agro-ecological regions of India. National Bureau of Soil Survey and Land Use Planning.

Παραπομπή Chicago Style

Seghal,J L, Mandal ,C, και Mandal,D K. Agro-ecological Regions of India. Nagpur: National Bureau of Soil Survey and Land Use Planning, 1992.

Παραπομπή MLA

Seghal,J L, et al. Agro-ecological Regions of India. National Bureau of Soil Survey and Land Use Planning, 1992.