APA aipamena

Vogel. (2013). How to Gain Gain (2.). Springer Berlin Heidelberg.

Chicago Style aipamena

Vogel. How to Gain Gain. 2. Springer Berlin Heidelberg, 2013.

MLA aipamena

Vogel. How to Gain Gain. 2. Springer Berlin Heidelberg, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.