APA (7th ed.) Citation

FM, B., SP, M., KH, L., & T, P. (2001). Teaching mathematics to students with mild-to-moderate mental retardation: A review of the literature. Mental retardation, 39(1), 20. https://doi.org/10.1352/0047-6765(2001)039<0020:TMTSWM>2.0.CO;2

Chicago Style (17th ed.) Citation

FM, Butler, Miller SP, Lee KH, and Pierce T. "Teaching Mathematics to Students with Mild-to-moderate Mental Retardation: A Review of the Literature." Mental Retardation 39, no. 1 (2001): 20. https://doi.org/10.1352/0047-6765(2001)039<0020:TMTSWM>2.0.CO;2.

MLA (9th ed.) Citation

FM, Butler, et al. "Teaching Mathematics to Students with Mild-to-moderate Mental Retardation: A Review of the Literature." Mental Retardation, vol. 39, no. 1, 2001, p. 20, https://doi.org/10.1352/0047-6765(2001)039<0020:TMTSWM>2.0.CO;2.