Style de citation APA (7e éd.)

Heilmann, P. G. F. (1972). On the formation of red soils in the lower Crati Basin, S. Italy. International Institute for Aerial Survey and Earth Sciences.

Style de citation Chicago (17e éd.)

Heilmann, P. G. F. On the Formation of Red Soils in the Lower Crati Basin, S. Italy. Enschede, Netherlands: International Institute for Aerial Survey and Earth Sciences, 1972.

Style de citation MLA (8e éd.)

Heilmann, P. G. F. On the Formation of Red Soils in the Lower Crati Basin, S. Italy. International Institute for Aerial Survey and Earth Sciences, 1972.