Gerlach, V. S. (1971). Teaching and media: A systematic approach. Prentice-Hall.
Chicago-čujuhus (17. p.)Gerlach, Vernon S. Teaching and Media: A Systematic Approach. Englewood Cliffs: Prentice-Hall, 1971.
MLA-čujuhus (9. p.)Gerlach, Vernon S. Teaching and Media: A Systematic Approach. Prentice-Hall, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.