The invisible host,
by Gwen Bristow and Bruce Manning.
APA Citation
Bristow, G., Manning, B. (1930). The invisible host. First edition. New York: The Mystery league, inc..
MLA Citation
Bristow, Gwen, 1903-, and Bruce Manning. The Invisible Host. First edition. New York: The Mystery league, inc., 1930.
Warning: These citations may not always be complete (especially for serials).