Παραπομπή APA

Indian Standards Institution. (1966). Indian Standard: Specification for Ball Point Pen Refills. Indian Standards Institution.

Παραπομπή Chicago Style

Indian Standards Institution. Indian Standard: Specification for Ball Point Pen Refills. N.Delhi: Indian Standards Institution, 1966.

Παραπομπή MLA

Indian Standards Institution. Indian Standard: Specification for Ball Point Pen Refills. Indian Standards Institution, 1966.