APA (7th ed.) Citation

Bird, J., & May, A. (1980). Business calculation. Lengman Group.

Chicago Style (17th ed.) Citation

Bird, J.O, and A.J.C May. Business Calculation. Lengman Group, 1980.

MLA (8th ed.) Citation

Bird, J.O, and A.J.C May. Business Calculation. Lengman Group, 1980.

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