Cita APA

Pennsylvania State University. Mineral Industries Experiment Station. (1947). Seismograph report. Geophysical Laboratory.

Citación estilo Chicago

Pennsylvania State University. Mineral Industries Experiment Station. Seismograph Report. University Park, Pa.: Geophysical Laboratory, 1947.

Cita MLA

Pennsylvania State University. Mineral Industries Experiment Station. Seismograph Report. Geophysical Laboratory, 1947.

Warning: These citations may not always be 100% accurate.