Englewood Cliffs, N.J. : Prentice-Hall, 1986
4th ed.

Washington, D.C. : U.S. Govt. Print. Off, 1955
Reprinted with additions and changes, 1955.

London ; New York : Parthenon Pub. Group, 1994

[Washington, D.C.] : U.S. Government Printing Office, 1943

Champaign, IL : Human Kinetics, 2014
Fifth edition.

Norwalk, Conn. : Appleton-Century Crofts, 1984

Geneva : International Labour Office, 1989

Sudbury, Mass. : Jones and Bartlett Publishers, 2009

Champaign, Ill. : Human Kinetics Books, 1989

Yardley, PA : StayWell, 2005
4th ed.

[Washington] : [U.S. Govt. Print. Off], 1968

Englewood, Colo. : Morton, 1990
4th ed.

Austin, TX : Pets America, 2007
1st ed.

New York : Ronald Press Co. 1965
Rev. print.

Montreal : Harvest House, 1967
1st ed.

St. Louis : Times Mirror/Mosby College Pub., 1986
3rd ed.

New York : St. Martin's Griffin, 2008
1st ed.

Burlington, MA : Jones & Bartlett Learning, 2015
Eighth edition.

Columbus, Ohio : Publishing Horizons, 1986
2nd ed.

New York : McGraw-Hill, 1978
4th ed.