Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.