Leif, W. (1976). Four Swedish Photographers: Yngve Baum, Ola Terje, Jens S. Jensen, Hans Alenius. Modern Museet.
Cita Chicago Style (17a ed.)Leif, Wigh. Four Swedish Photographers: Yngve Baum, Ola Terje, Jens S. Jensen, Hans Alenius. Stockholm: Modern Museet, 1976.
Cita MLA (8a ed.)Leif, Wigh. Four Swedish Photographers: Yngve Baum, Ola Terje, Jens S. Jensen, Hans Alenius. Modern Museet, 1976.
Precaución: Estas citas no son 100% exactas.