Παραπομπή APA

Indian Standards Institution. (1969). Indian Standard: Specification for High Impact Polystyrene Sheet. Indian Standards Institution.

Παραπομπή Chicago Style

Indian Standards Institution. Indian Standard: Specification for High Impact Polystyrene Sheet. N.Delhi: Indian Standards Institution, 1969.

Παραπομπή MLA

Indian Standards Institution. Indian Standard: Specification for High Impact Polystyrene Sheet. Indian Standards Institution, 1969.