APA (7th ed.) Citation

Hamari, J. (2009). Virtual goods sales: New requirements for business modelling?

Chicago Style (17th ed.) Citation

Hamari, Juho. Virtual Goods Sales: New Requirements for Business Modelling? Jyväskylä, 2009.

MLA (9th ed.) Citation

Hamari, Juho. Virtual Goods Sales: New Requirements for Business Modelling? 2009.