APA (7e ed.) Bronvermelding

Clay, B. a. K. B. J. (2022). Search engine optimization: All-in-one for Dummies (4th ed.). John Wiley & Sons.

Chicago (17e ed.) Bronvermelding

Clay, Bruce and Kristopher B. Jones. Search Engine Optimization: All-in-one for Dummies. 4th ed. Hoboken, NJ: John Wiley & Sons, 2022.

MLA (9e ed.) Bronvermelding

Clay, Bruce and Kristopher B. Jones. Search Engine Optimization: All-in-one for Dummies. 4th ed. John Wiley & Sons, 2022.