Symposium on the nature, occurrence, and effects of sigma phase :
Presented at the fifty-third annual meeting, Atlantic City, N.J., June 26-27, 1950.
APA Citation
American Society for Testing and Materials. (1951). Symposium on the nature, occurrence, and effects of sigma phase: Presented at the fifty-third annual meeting, Atlantic City, N.J., June 26-27, 1950. Philadelphia: [publisher not identified].
MLA Citation
American Society for Testing and Materials. Symposium On the Nature, Occurrence, And Effects of Sigma Phase: Presented At the Fifty-third Annual Meeting, Atlantic City, N.J., June 26-27, 1950. Philadelphia: [publisher not identified], 1951.
Warning: These citations may not always be complete (especially for serials).