A hand-sort punch card system for the evaluation of a nursery population.

MLA

Gingell, R. L., et al. “A Hand-Sort Punch Card System for the Evaluation of a Nursery Population.” The Journal of Pediatrics, vol. 81, no. 3, Sept. 1972, pp. 528–31. EBSCOhost, https://doi.org/10.1016/s0022-3476(72)80180-x.

APA

Gingell, R. L., Grant, J. A., & Cornblath, M. (1972). A hand-sort punch card system for the evaluation of a nursery population. The Journal of Pediatrics, 81(3), 528–531. https://doi.org/10.1016/s0022-3476(72)80180-x

Chicago

Gingell, R L, J A Grant, and M Cornblath. 1972. “A Hand-Sort Punch Card System for the Evaluation of a Nursery Population.” The Journal of Pediatrics 81 (3): 528–31. doi:10.1016/s0022-3476(72)80180-x.