APA (7th ed.) Citation

Harder, E. C., & Johnston, A. W. (1918). Preliminary report on the geology of east central Minnesota including the Cuyuna iron-ore district. The University of Minnesota.

Chicago Style (17th ed.) Citation

Harder, Edmund Ceicil, and A. W. Johnston. Preliminary Report on the Geology of East Central Minnesota Including the Cuyuna Iron-ore District. Minneapolis: The University of Minnesota, 1918.

MLA (9th ed.) Citation

Harder, Edmund Ceicil, and A. W. Johnston. Preliminary Report on the Geology of East Central Minnesota Including the Cuyuna Iron-ore District. The University of Minnesota, 1918.