Cita APA (7a ed.)

Preston, J. (1954). The geology of the pre-cambrian rocks of the kuopio district. Suomalainen Tiedeakatemia.

Cita Chicago Style (17a ed.)

Preston, John. The Geology of the Pre-cambrian Rocks of the Kuopio District. Helsinki: Suomalainen Tiedeakatemia, 1954.

Cita MLA (9a ed.)

Preston, John. The Geology of the Pre-cambrian Rocks of the Kuopio District. Suomalainen Tiedeakatemia, 1954.