APA (7th ed.) Citation

Scheiman, M. (1991). Hidden eye problems can block learning. Learning, 20(1), 66.

Chicago Style (17th ed.) Citation

Scheiman, M. "Hidden Eye Problems Can Block Learning." Learning 20, no. 1 (1991): 66.

MLA (9th ed.) Citation

Scheiman, M. "Hidden Eye Problems Can Block Learning." Learning, vol. 20, no. 1, 1991, p. 66.

Warning: These citations may not always be 100% accurate.