APA

Clark G., . (1967). The stone age hunters. New York: McGraw-Hill.

Chicago

Clark Grahame, . 1967. The stone age hunters. New York: McGraw-Hill.

Harvard

Clark G., . (1967). The stone age hunters. New York: McGraw-Hill.

MLA

Clark Grahame, . The stone age hunters. New York: McGraw-Hill. 1967.