Cita APA (7th ed.)

Krishnaiah, P. R., & Rao, C. R. (1988). Sampling. North-Holland.

Cita Chicago (17th ed.)

Krishnaiah, Paruchuri R., i C. Radhakrishna Rao. Sampling. Amsterdam: North-Holland, 1988.

Cita MLA (9th ed.)

Krishnaiah, Paruchuri R., i C. Radhakrishna Rao. Sampling. North-Holland, 1988.