APA

sandra G., laura b. & nina w. (2008). 100 Greatest Trips. new york: american express publishing corporation.

Chicago

sandra Garcia, laura begley and nina willdorf. 2008. 100 Greatest Trips. new york: american express publishing corporation.

Harvard

sandra G., laura b. and nina w. (2008). 100 Greatest Trips. new york: american express publishing corporation.

MLA

sandra Garcia, laura begley and nina willdorf. 100 Greatest Trips. new york: american express publishing corporation. 2008.