Singh Harjendra. An introduction to paleontology (1st.). C.K. Arora.
Chicagoスタイル(17版)引用形式Singh Harjendra. An Introduction to Paleontology. 1st. New Delhi: C.K. Arora.
MLA(9版)引用形式Singh Harjendra. An Introduction to Paleontology. 1st. C.K. Arora.
警告: この引用は必ずしも正確ではありません.