APA

Smith W., . (1975). Flags through the ages and across the world. New York: McGraw-Hill.

Chicago

Smith Whitney, . 1975. Flags through the ages and across the world. New York: McGraw-Hill.

Harvard

Smith W., . (1975). Flags through the ages and across the world. New York: McGraw-Hill.

MLA

Smith Whitney, . Flags through the ages and across the world. New York: McGraw-Hill. 1975.