एपीए उद्धरण

Day, P. R. (1966). Ophthalmic Medical Practitioners' Fees.

शिकागो स्टाइल उद्धरण

Day, P. Richard. Ophthalmic Medical Practitioners' Fees. 1966.

एमएलए उद्धरण

Day, P. Richard. Ophthalmic Medical Practitioners' Fees. 1966.