APA (7th ed.) Citation

Hemstock, H. F., & Costelloe, P. (1969). Modern business arithmetic (3rd ed.). Nelson.

Chicago Style (17th ed.) Citation

Hemstock, H. F., and P.J Costelloe. Modern Business Arithmetic. 3rd ed. [S.l.]: Nelson, 1969.

MLA (9th ed.) Citation

Hemstock, H. F., and P.J Costelloe. Modern Business Arithmetic. 3rd ed. Nelson, 1969.

Warning: These citations may not always be 100% accurate.