APA (7th ed.) Citation

Wentworth, G. A. (1906). A first book in arithmetic for the Philippine Islands. Ginn.

Chicago Style (17th ed.) Citation

Wentworth, George Albert. A First Book in Arithmetic for the Philippine Islands. Boston: Ginn, 1906.

MLA (9th ed.) Citation

Wentworth, George Albert. A First Book in Arithmetic for the Philippine Islands. Ginn, 1906.

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