The earth /
Lawrence Hubbell.

APA Citation

Hubbell, L., United States. National Aeronautics and Space Administration., National Science Teachers Association. (1964). The earth. Darien, Conn.: Teachers Publishing Corp..

MLA Citation

Hubbell, Lawrence, United States. National Aeronautics and Space Administration, and National Science Teachers Association. The Earth. Darien, Conn.: Teachers Publishing Corp., 1964.

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