Kohler, Heinz
Alfred A. Knoff , 1961
Buku Teks
edited by Paul A. Samuelson
McGraw-Hill, 1970
Buku Teks
Hailstones, Thomas J.
South-Western Publishing, 1974
Buku Teks
edited by Richard M. Bird and Oliver Oldman
John Hopkins, 1967
Buku Teks
edited by Richard M. Bird and Oliver Oldman
Johns Hopkins Press, 1964
Buku Teks