Cita APA (7th ed.)

Singh, G. 526.8 S617m: Map work and practical geography (4th rev. ed. (user-supplied).). New Delhi.

Cita Chicago (17th ed.)

Singh, Gopal. 526.8 S617m: Map Work and Practical Geography. 4th rev. ed. (user-supplied). Gopal Singh: New Delhi.

Cita MLA (9th ed.)

Singh, Gopal. 526.8 S617m: Map Work and Practical Geography. 4th rev. ed. (user-supplied). New Delhi.