APA (7th ed.) Citation

Richardson, R. S. (1967). Getting acquainted with comets ([1st ed.].). McGraw-Hill.

Chicago Style (17th ed.) Citation

Richardson, Robert S. Getting Acquainted with Comets. [1st ed.]. New York: McGraw-Hill, 1967.

MLA (9th ed.) Citation

Richardson, Robert S. Getting Acquainted with Comets. [1st ed.]. McGraw-Hill, 1967.