APA (7th ed.) Citation

Brown Instrument Company. (1946). Flow meter engineering handbook (2d ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Brown Instrument Company. Flow Meter Engineering Handbook. 2d ed. Philadelphia: [publisher not identified], 1946.

MLA (9th ed.) Citation

Brown Instrument Company. Flow Meter Engineering Handbook. 2d ed. [publisher not identified], 1946.