Cita APA (7th ed.)

Landsheere, G. d. (1982). Empirical research in education. Unesco.

Cita Chicago (17th ed.)

Landsheere, Gilbert de. Empirical Research in Education. Paris, France: Unesco, 1982.

Cita MLA (9th ed.)

Landsheere, Gilbert de. Empirical Research in Education. Unesco, 1982.