APA

Caldrey T., Mckeever S. (. )., . (1995). Shells. London: Dorling Kindersley.

Chicago

Caldrey Tennifer, Mckeever Susan (Editor ), . 1995. Shells. London: Dorling Kindersley.

Harvard

Caldrey T., Mckeever S. (. )., . (1995). Shells. London: Dorling Kindersley.

MLA

Caldrey Tennifer, Mckeever Susan (Editor ), . Shells. London: Dorling Kindersley. 1995.