Willetts, J. (1819). The scholar's arithmetic: Designed for the use of schools in the United States (3rd ed., corr. and improved.). Printed and published by Paraclete Potter for himself and for S. Potter & Co., Philadelphia.
Chicago-Zitierstil (17. Ausg.)Willetts, Jacob. The Scholar's Arithmetic: Designed for the Use of Schools in the United States. 3rd ed., corr. and improved. Poughkeepsie [N.Y.]: Printed and published by Paraclete Potter for himself and for S. Potter & Co., Philadelphia, 1819.
MLA-Zitierstil (9. Ausg.)Willetts, Jacob. The Scholar's Arithmetic: Designed for the Use of Schools in the United States. 3rd ed., corr. and improved. Printed and published by Paraclete Potter for himself and for S. Potter & Co., Philadelphia, 1819.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.