APA

Walls G. L., Mathews R. W., . (1952). New means of studying color blindness and normal foveal color vision. Berkeley, Calif. [u.a.]: Univ. of California Press.

Chicago

Walls Gordon L, Mathews Ravenna W, . 1952. New means of studying color blindness and normal foveal color vision. Berkeley, Calif. [u.a.]: Univ. of California Press.

Harvard

Walls G. L., Mathews R. W., . (1952). New means of studying color blindness and normal foveal color vision. Berkeley, Calif. [u.a.]: Univ. of California Press.

MLA

Walls Gordon L, Mathews Ravenna W, . New means of studying color blindness and normal foveal color vision. Berkeley, Calif. [u.a.]: Univ. of California Press. 1952.