APA
Patel K. A. &. K. S. P., . (1975). A text book of biology for std. XI. S. Chand & Co (Pvt) Ltd, Mumbai: .
Chicago
Patel K A & Karmarkar S P, . 1975. A text book of biology for std. XI. S. Chand & Co (Pvt) Ltd, Mumbai: .
Harvard
Patel K. A. &. K. S. P., . (1975). A text book of biology for std. XI. S. Chand & Co (Pvt) Ltd, Mumbai: .
MLA
Patel K A & Karmarkar S P, . A text book of biology for std. XI. S. Chand & Co (Pvt) Ltd, Mumbai: . 1975.