APA

hakim m. s., . (1987). essays on science. karachi: hamdard foundation press.

Chicago

hakim mohammad s, . 1987. essays on science. karachi: hamdard foundation press.

Harvard

hakim m. s., . (1987). essays on science. karachi: hamdard foundation press.

MLA

hakim mohammad s, . essays on science. karachi: hamdard foundation press. 1987.