APA-referens (7:e uppl.)

Lengrand, P. (1970). An introduction to lifelong education. Unesco.

Chicago-referens (17:e uppl.)

Lengrand, Paul. An Introduction to Lifelong Education. [Paris]: Unesco, 1970.

MLA-referens (9:e uppl.)

Lengrand, Paul. An Introduction to Lifelong Education. Unesco, 1970.