APA

Henderson B., Wiser G. B., . (1953). The blue sky book. New York: L . W . Singer Co.

Chicago

Henderson Barbara, Wiser Guy Brown, . 1953. The blue sky book. New York: L . W . Singer Co.

Harvard

Henderson B., Wiser G. B., . (1953). The blue sky book. New York: L . W . Singer Co.

MLA

Henderson Barbara, Wiser Guy Brown, . The blue sky book. New York: L . W . Singer Co. 1953.