APA
Powell M. (., . (1943). Boys and girls at worship. New York: Harper & brothers.
Chicago
Powell Marie (Cole), . 1943. Boys and girls at worship. New York: Harper & brothers.
Harvard
Powell M. (., . (1943). Boys and girls at worship. New York: Harper & brothers.
MLA
Powell Marie (Cole), . Boys and girls at worship. New York: Harper & brothers. 1943.