APA (7th ed.) Citation

Wilson, B., & Edington, G. (1981). First child, second child-- your birth order profile. McGraw-Hill.

Chicago Style (17th ed.) Citation

Wilson, Bradford, and George Edington. First Child, Second Child-- Your Birth Order Profile. New York: McGraw-Hill, 1981.

MLA (9th ed.) Citation

Wilson, Bradford, and George Edington. First Child, Second Child-- Your Birth Order Profile. McGraw-Hill, 1981.