Gaya APA
MASON, Robert D.. (1978).
Programmed learning aid .
USA:
Learing sitem comvany.
Gaya Chicago
MASON, Robert D..
Programmed learning aid.
USA:
Learing sitem comvany,
1978.
Text.
Gaya MLA
MASON, Robert D..
Programmed learning aid.
USA:
Learing sitem comvany,
1978.
Text.
Gaya Turabian
MASON, Robert D..
Programmed learning aid.
USA:
Learing sitem comvany,
1978.
Print.