APA

Pierce W. D., Gray C. E., . (1981). Deciphering the learning domains: a second generation classification model for educational objectives. Washington, D.C: University Press of America.

Chicago

Pierce Walter D, Gray Charles E, . 1981. Deciphering the learning domains: a second generation classification model for educational objectives. Washington, D.C: University Press of America.

Harvard

Pierce W. D., Gray C. E., . (1981). Deciphering the learning domains: a second generation classification model for educational objectives. Washington, D.C: University Press of America.

MLA

Pierce Walter D, Gray Charles E, . Deciphering the learning domains: a second generation classification model for educational objectives. Washington, D.C: University Press of America. 1981.