Gerlach, V. S. (1971). Teaching and media: A systematic approach. Prentice-Hall.
Cita Chicago Style (17a ed.)Gerlach, Vernon S. Teaching and Media: A Systematic Approach. Englewood Cliffs: Prentice-Hall, 1971.
Cita MLA (9a ed.)Gerlach, Vernon S. Teaching and Media: A Systematic Approach. Prentice-Hall, 1971.
Precaución: Estas citas no son 100% exactas.