O'Donnell, M., Hoopes, F., & Hoopes, M. C. (1957). Through the green gate (Golden anniversary [edition].). Row, Peterson and Company.
Chicago-viite (17. p.)O'Donnell, Mabel, Florence Hoopes, ja Margaret Campbell Hoopes. Through the Green Gate. Golden anniversary [edition]. Evanston, Illinois ; Elmsford, New York: Row, Peterson and Company, 1957.
MLA-viite (8. p.)O'Donnell, Mabel, et al. Through the Green Gate. Golden anniversary [edition]. Row, Peterson and Company, 1957.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.