APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.