Gaya APA
ERVEN, Eugene Van. (1992).
The Playful Revolution .
Indianapolis:
Indiana University Press.
Gaya Chicago
ERVEN, Eugene Van.
The Playful Revolution.
Indianapolis:
Indiana University Press,
1992.
Buku Teks.
Gaya MLA
ERVEN, Eugene Van.
The Playful Revolution.
Indianapolis:
Indiana University Press,
1992.
Buku Teks.
Gaya Turabian
ERVEN, Eugene Van.
The Playful Revolution.
Indianapolis:
Indiana University Press,
1992.
Buku Teks.