Steps to the moon /
by Alvin E. Dale and William L. Newman.

APA Citation

Dale, A. E., Newman, W. Louis., Geological Survey (U.S.). (1992). Steps to the moon. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey.

MLA Citation

Dale, Alvin E, William Louis Newman, and Geological Survey (U.S.). Steps to the Moon. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey, 1992.

Warning: These citations may not always be complete (especially for serials).