APA (7th ed.) Citation

SPENCER, E. H. (1962). basic concepts of physical geology - Elizabeth humpris Spencer. Thomas Y Growel.

Chicago Style (17th ed.) Citation

SPENCER, Elizabeth Humphris. Basic Concepts of Physical Geology - Elizabeth Humpris Spencer. Thomas Y Growel, 1962.

MLA (8th ed.) Citation

SPENCER, Elizabeth Humphris. Basic Concepts of Physical Geology - Elizabeth Humpris Spencer. Thomas Y Growel, 1962.

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