APA (7th ed.) Citation

Fitzpatrick, D., & Goddard, C. J. (2010). Subtraction. Donal Fitzpatrick.

Chicago Style (17th ed.) Citation

Fitzpatrick, Donal, and Curator: Julian Goddard. Subtraction. Donal Fitzpatrick, 2010.

MLA (9th ed.) Citation

Fitzpatrick, Donal, and Curator: Julian Goddard. Subtraction. Donal Fitzpatrick, 2010.

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