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1
Economics / Ralph T. Byrns, Gerald W. Stone.
New York, NY : HarperCollins College Publishers, 1995
1 v. (various pagings) : col. ill., col. maps ; 27 cm.
2
Great ideas for teaching economics / Ralph T. Byrns, Gerald W. Stone.
Glenview, Ill. : Scott, Foresman, 1987.
137p.; 23cm
Byrns, Ralph T
3
Homework sets for Macroeconomics / Ralph T. Byrns, Gerald W. Stone.
New York : HarperCollins Publishers, 1995.
xx, 100p.; 26cm.

To be used with Macroeconomics : 6th edition textbook.
4
Microeconomics / Ralph T. Byrns, Gerald W. Stone.
Glenview, Ill. : Scott, Foresman, c1987
xxxi, 474 p. : col. ill. ; 26 cm.