APA-viite

Agriculture Department, Govt of Kerala, & Soil Survey Organisation. (2007). Bench Mark Soils Of Kerala.

Chicago-tyylinen lähdeviittaus

Agriculture Department, Govt of Kerala, ja Soil Survey Organisation. Bench Mark Soils Of Kerala. Tiruvanathapuram, Govt Of Kerala, 2007.

MLA-viite

Agriculture Department, et al. Bench Mark Soils Of Kerala. 2007.