Cita APA (7a ed.)

Singh Harjendra. An introduction to paleontology (1st.). C.K. Arora.

Cita Chicago Style (17a ed.)

Singh Harjendra. An Introduction to Paleontology. 1st. New Delhi: C.K. Arora.

Cita MLA (9a ed.)

Singh Harjendra. An Introduction to Paleontology. 1st. C.K. Arora.