APA-Zitierstil (7. Ausg.)

Bell, A. W., Shiu, C. M., & Horton, B. (1981). Evaluating attainment in process aspects of mathematics. Shell Centre for Math. Education.

Chicago-Zitierstil (17. Ausg.)

Bell, Alan W., Christine M. Shiu, und B. Horton. Evaluating Attainment in Process Aspects of Mathematics. Nottingham: Shell Centre for Math. Education, 1981.

MLA-Zitierstil (9. Ausg.)

Bell, Alan W., et al. Evaluating Attainment in Process Aspects of Mathematics. Shell Centre for Math. Education, 1981.