Cita APA

UMBGROVE, J. (1971). The pulse of the earth - J.H.F. Umbgrove. Martinus Nijnof.

Citación estilo Chicago

UMBGROVE, J.H.F. The Pulse of the Earth - J.H.F. Umbgrove. Martinus Nijnof, 1971.

Cita MLA

UMBGROVE, J.H.F. The Pulse of the Earth - J.H.F. Umbgrove. Martinus Nijnof, 1971.

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