APA (7e ed.) Bronvermelding

Boot, L. R., & Johnson, D. C. (1984). Algebra: Children's strategies and errors. NFER-Nelson.

Chicago (17e ed.) Bronvermelding

Boot, Lesley R., en David C. Johnson. Algebra: Children's Strategies and Errors. Windsor: NFER-Nelson, 1984.

MLA (9e ed.) Bronvermelding

Boot, Lesley R., en David C. Johnson. Algebra: Children's Strategies and Errors. NFER-Nelson, 1984.