Cita APA (7a ed.)

Problems and methods in programmed learning: The Proceedings of the 1967 APL/NCPL Birmingham Conference Part 4.

Cita Chicago Style (17a ed.)

Problems and Methods in Programmed Learning: The Proceedings of the 1967 APL/NCPL Birmingham Conference Part 4.

Cita MLA (9a ed.)

Problems and Methods in Programmed Learning: The Proceedings of the 1967 APL/NCPL Birmingham Conference Part 4.