APA (7e ed.) Bronvermelding

Halligan, B., & Shah, D. (2010). Inbound marketing: Get found using Google, social media, and blogs. Wiley.

Chicago (17e ed.) Bronvermelding

Halligan, Brian, en Dharmesh Shah. Inbound Marketing: Get Found Using Google, Social Media, and Blogs. Hoboken, N.J: Wiley, 2010.

MLA (9e ed.) Bronvermelding

Halligan, Brian, en Dharmesh Shah. Inbound Marketing: Get Found Using Google, Social Media, and Blogs. Wiley, 2010.