Gaya APA
Heward, William L.. (1984).
Focus on behavior analysis in education .
Columbus:
Bell and Howell.
Gaya Chicago
Heward, William L..
Focus on behavior analysis in education.
Columbus:
Bell and Howell,
1984.
Text.
Gaya MLA
Heward, William L..
Focus on behavior analysis in education.
Columbus:
Bell and Howell,
1984.
Text.
Gaya Turabian
Heward, William L..
Focus on behavior analysis in education.
Columbus:
Bell and Howell,
1984.
Print.