APA (7th ed.) Citation

American Society for Testing Materials. (1947). Symposium on pH measurement: Forty-ninth annual meeting. [publisher not identified].

Chicago Style (17th ed.) Citation

American Society for Testing Materials. Symposium on PH Measurement: Forty-ninth Annual Meeting. Philadelphia: [publisher not identified], 1947.

MLA (9th ed.) Citation

American Society for Testing Materials. Symposium on PH Measurement: Forty-ninth Annual Meeting. [publisher not identified], 1947.

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