APA (7th ed.) Citation

SpringerLink (Online service) & Trappl, R. (2013). Your Virtual Butler: The Making-of. Springer Berlin Heidelberg : Imprint: Springer.

Chicago Style (17th ed.) Citation

SpringerLink (Online service) and Robert Trappl. Your Virtual Butler: The Making-of. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2013.

MLA (8th ed.) Citation

SpringerLink (Online service) and Robert Trappl. Your Virtual Butler: The Making-of. Springer Berlin Heidelberg : Imprint: Springer, 2013.

Warning: These citations may not always be 100% accurate.