Who answers?

APA Citation

Richardson, J. E. (John Emmett)., Huntley, F., Copy 2: Watt, J. W. (1929). Who answers? Rev. ed. [Hollywood, Calif.]: The Great School of Natural Science.

MLA Citation

Richardson, J. E. (John Emmett), 1853-1935, Florence Huntley, and Jerry W. Copy 2: Watt. Who Answers? Rev. ed. [Hollywood, Calif.]: The Great School of Natural Science, 1929.