एपीए उद्धरण

Ehlers, H. J. (1969). Crucial issues in education (4th ed.).

शिकागो स्टाइल उद्धरण

Ehlers, Henry J. Crucial Issues in Education. 4th ed. 1969.

एमएलए उद्धरण

Ehlers, Henry J. Crucial Issues in Education. 4th ed. 1969.