Halligan, B., & Shah, D. (2014). Inbound marketing: Attract, engage, and delight customers online (Revised and updated second edition.). Wiley.
Citazione stile Chigago Style (17a edizione)Halligan, B., e Dharmesh Shah. Inbound Marketing: Attract, Engage, and Delight Customers Online. Revised and updated second edition. Hoboken, New Jersey: Wiley, 2014.
Citatione MLA (9a ed.)Halligan, B., e Dharmesh Shah. Inbound Marketing: Attract, Engage, and Delight Customers Online. Revised and updated second edition. Wiley, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.