APA (7th ed.) Citation

Holley, R. (2010). Crowdsourcing: How and Why Should Libraries Do It? D-Lib magazine, 16(3/4), NP. https://doi.org/10.1045/march2010-holley

Chicago Style (17th ed.) Citation

Holley, Rose. "Crowdsourcing: How and Why Should Libraries Do It?" D-Lib Magazine 16, no. 3/4 (2010): NP. https://doi.org/10.1045/march2010-holley.

MLA (9th ed.) Citation

Holley, Rose. "Crowdsourcing: How and Why Should Libraries Do It?" D-Lib Magazine, vol. 16, no. 3/4, 2010, p. NP, https://doi.org/10.1045/march2010-holley.