APA (7th ed.) Citation

MacGregor, W. G., Bracken, A., & Fair, J. A. (1972). Piped premixed 50% nitrous oxide and 50% oxygen mixture (Entonox). Blackwell Publishing Ltd.

Chicago Style (17th ed.) Citation

MacGregor, W. G., A. Bracken, and J. A. Fair. Piped Premixed 50% Nitrous Oxide and 50% Oxygen Mixture (Entonox). Oxford, UK: Blackwell Publishing Ltd, 1972.

MLA (9th ed.) Citation

MacGregor, W. G., et al. Piped Premixed 50% Nitrous Oxide and 50% Oxygen Mixture (Entonox). Blackwell Publishing Ltd, 1972.