APA

Heck J. . G., . (1979). The Complete Encyclopedia of illustrations. New York: Park Lane.

Chicago

Heck J G, . 1979. The Complete Encyclopedia of illustrations. New York: Park Lane.

Harvard

Heck J. . G., . (1979). The Complete Encyclopedia of illustrations. New York: Park Lane.

MLA

Heck J G, . The Complete Encyclopedia of illustrations. New York: Park Lane. 1979.