Cita APA (7a ed.)

Som, R. K. (1973). A manual of sampling techniques. Heinemann.

Cita Chicago Style (17a ed.)

Som, Ranjan Kumar. A Manual of Sampling Techniques. London [etc.]: Heinemann, 1973.

Cita MLA (9a ed.)

Som, Ranjan Kumar. A Manual of Sampling Techniques. Heinemann, 1973.