Cita APA (7a ed.)

Verma, A. R., & Krishna, P. (1966). Polymorphism and polytypism in crystals. Wiley & Sons.

Cita Chicago Style (17a ed.)

Verma, Ajit Ram, y P. Krishna. Polymorphism and Polytypism in Crystals. New York [etc.]: Wiley & Sons, 1966.

Cita MLA (9a ed.)

Verma, Ajit Ram, y P. Krishna. Polymorphism and Polytypism in Crystals. Wiley & Sons, 1966.