APA (7th ed.) Citation

Ballard,P.B. Fundamental Arthmetic: Pupil's Book I. Fundamental Arthmetic.

Chicago Style (17th ed.) Citation

Ballard,P.B. Fundamental Arthmetic: Pupil's Book I. London: Fundamental Arthmetic.

MLA (9th ed.) Citation

Ballard,P.B. Fundamental Arthmetic: Pupil's Book I. Fundamental Arthmetic.

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