APA (7th ed.) Citation

Lipson, N. (2013). pH Meters - The Acid Test. African Violet Magazine, 66(5), 16.

Chicago Style (17th ed.) Citation

Lipson, Neil. "PH Meters - The Acid Test." African Violet Magazine 66, no. 5 (2013): 16.

MLA (9th ed.) Citation

Lipson, Neil. "PH Meters - The Acid Test." African Violet Magazine, vol. 66, no. 5, 2013, p. 16.