APA aipamena

O'Donnell, M., Hoopes, F., & Hoopes, M. C. (1947). Engine whistles. Row, Peterson and Company.

Chicago Style aipamena

O'Donnell, Mabel, Florence Hoopes, and Margaret Campbell Hoopes. Engine Whistles. Evanston, Illinois ; New York City ; San Francisco: Row, Peterson and Company, 1947.

MLA aipamena

O'Donnell, Mabel, et al. Engine Whistles. Row, Peterson and Company, 1947.