APA

Blessed Martin Guild, . (1950). Fifteenth anniversary book of the Blessed Martin Guild. New York: The Blessed Martin Guild.

Chicago

Blessed Martin Guild, . 1950. Fifteenth anniversary book of the Blessed Martin Guild. New York: The Blessed Martin Guild.

Harvard

Blessed Martin Guild, . (1950). Fifteenth anniversary book of the Blessed Martin Guild. New York: The Blessed Martin Guild.

MLA

Blessed Martin Guild, . Fifteenth anniversary book of the Blessed Martin Guild. New York: The Blessed Martin Guild. 1950.