एपीए उद्धरण

Blacker, R. (1970). Fifteen plus: School leavers and the outside world.

शिकागो स्टाइल उद्धरण

Blacker, Rosamunde. Fifteen Plus: School Leavers and the Outside World. 1970.

एमएलए उद्धरण

Blacker, Rosamunde. Fifteen Plus: School Leavers and the Outside World. 1970.