APA Style
PYLE: Programmed learning aid for elementary accou. (1970).
:
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Chicago Style
PYLE: Programmed learning aid for elementary accou.
.
:
,
1970.
.
MLA Style
PYLE: Programmed learning aid for elementary accou.
.
:
,
1970.
.
Turabian Style
PYLE: Programmed learning aid for elementary accou.
:
,
1970.
.