Gaya APA
O'Neil, Harold F.. (1979).
Issues in instructional systems development .
New York:
Academic Press.
Gaya Chicago
O'Neil, Harold F..
Issues in instructional systems development.
New York:
Academic Press,
1979.
Text.
Gaya MLA
O'Neil, Harold F..
Issues in instructional systems development.
New York:
Academic Press,
1979.
Text.
Gaya Turabian
O'Neil, Harold F..
Issues in instructional systems development.
New York:
Academic Press,
1979.
Print.