APA

O'Sullivan M., Davies M. L. & Thomson G. D. (1933). Twenty years a-growing. New York: The Viking Press.

Chicago

O'Sullivan Maurice, Davies Moya Llewelyn and Thomson George Derwent. 1933. Twenty years a-growing. New York: The Viking Press.

Harvard

O'Sullivan M., Davies M. L. and Thomson G. D. (1933). Twenty years a-growing. New York: The Viking Press.

MLA

O'Sullivan Maurice, Davies Moya Llewelyn and Thomson George Derwent. Twenty years a-growing. New York: The Viking Press. 1933.