Singh, K. (1994). The biological variation in Indian populations. O.U.Pr..
Chicago Style (17th ed.) ZitazioaSingh, K.S. The Biological Variation in Indian Populations. Delhi: O.U.Pr., 1994.
MLA (9th ed.) ZitazioaSingh, K.S. The Biological Variation in Indian Populations. O.U.Pr., 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.