APA

Wallace K., . (1998). A Day at seagull beach. London: Dorling Kindersley.

Chicago

Wallace Karen, . 1998. A Day at seagull beach. London: Dorling Kindersley.

Harvard

Wallace K., . (1998). A Day at seagull beach. London: Dorling Kindersley.

MLA

Wallace Karen, . A Day at seagull beach. London: Dorling Kindersley. 1998.