Gaya APA
Mager, Robert F.. (1984).
Preparing instructional objectives .
Belmont, Ca.:
Lake Publishing.
Gaya Chicago
Mager, Robert F..
Preparing instructional objectives.
Belmont, Ca.:
Lake Publishing,
1984.
Text.
Gaya MLA
Mager, Robert F..
Preparing instructional objectives.
Belmont, Ca.:
Lake Publishing,
1984.
Text.
Gaya Turabian
Mager, Robert F..
Preparing instructional objectives.
Belmont, Ca.:
Lake Publishing,
1984.
Print.