Miller, K., Perlmutter, M., & Keating, D. P. (1984). Cognitive arithmetic: Comparison of operations. [s.n.].
Cita Chicago Style (17a ed.)Miller, Kevin, Marion Perlmutter, y Daniel P. Keating. Cognitive Arithmetic: Comparison of Operations. [S.l.]: [s.n.], 1984.
Cita MLA (9a ed.)Miller, Kevin, et al. Cognitive Arithmetic: Comparison of Operations. [s.n.], 1984.
Precaución: Estas citas no son 100% exactas.