APA استشهاد

Indian standardds institution. (1985). Code of practice for installation of septic tanks (1.). Indian Standards Institution.

استشهاد بنمط شيكاغو

Indian standardds institution. Code of Practice for Installation of Septic Tanks. 1. New Delhi: Indian Standards Institution, 1985.

MLA استشهاد

Indian standardds institution. Code of Practice for Installation of Septic Tanks. 1. Indian Standards Institution, 1985.