APA

Teddington E. N. P. L., . (1961). Visual problems of color; symposium: (held at the National Physical Laboratory from 23rd. to 25th. n.p: Chemical Pub. Co.

Chicago

Teddington Eng National Physical Laboratory, . 1961. Visual problems of color; symposium: (held at the National Physical Laboratory from 23rd. to 25th. n.p: Chemical Pub. Co.

Harvard

Teddington E. N. P. L., . (1961). Visual problems of color; symposium: (held at the National Physical Laboratory from 23rd. to 25th. n.p: Chemical Pub. Co.

MLA

Teddington Eng National Physical Laboratory, . Visual problems of color; symposium: (held at the National Physical Laboratory from 23rd. to 25th. n.p: Chemical Pub. Co. 1961.