Ayers, F. (1954). Theory and problems of plane and spherical trignometry. McGraw-Hill.
Chicago ZitierstilAyers, Frank. Theory and Problems of Plane and Spherical Trignometry. New york: McGraw-Hill, 1954.
MLA ZitierstilAyers, Frank. Theory and Problems of Plane and Spherical Trignometry. McGraw-Hill, 1954.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.