APA (7th ed.) Citation

Block, B. (1967). PIFL. Heating/Piping/Air Conditioning., 39, 71.

Chicago Style (17th ed.) Citation

Block, B. "PIFL." Heating/Piping/Air Conditioning. 39 (1967): 71.

MLA (9th ed.) Citation

Block, B. "PIFL." Heating/Piping/Air Conditioning., vol. 39, 1967, p. 71.

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