APA

Pilkey D., .The Adventures of Ook and Gluk, Kung-Fu Cavemen from the Future. : BLUE SKY PR.

Chicago

Pilkey Dav, .The Adventures of Ook and Gluk, Kung-Fu Cavemen from the Future. : BLUE SKY PR.

Harvard

Pilkey D., .The Adventures of Ook and Gluk, Kung-Fu Cavemen from the Future. : BLUE SKY PR.

MLA

Pilkey Dav, .: BLUE SKY PR. .