Gaya APA

Freedman, R. (2008). How To Make Real Money In Second Life : Boost Your Business, Market Your Services, And Sell Your Products In The World's Hottest Virtual Community . New York: Mc Graw Hilll.

Gaya MLA

Freedman, Robert. "How To Make Real Money In Second Life : Boost Your Business, Market Your Services, And Sell Your Products In The World's Hottest Virtual Community". New York: Mc Graw Hilll, 2008. Text.