Cita APA (7th ed.)

Nigam, A. K., Puri, P. D., & Gupta, V. (1988). Characterizations and analysis of block designs. Wiley.

Cita Chicago (17th ed.)

Nigam, A. K., P. D. Puri, i Vijay Gupta. Characterizations and Analysis of Block Designs. New York: Wiley, 1988.

Cita MLA (9th ed.)

Nigam, A. K., et al. Characterizations and Analysis of Block Designs. Wiley, 1988.