APA način citiranja (7. izdanje)

Figueroa, R. M. Ecotourism: Robert Melchior Figueroa. Keywords for environmental studies.([2016]).

Čikaški stil citiranja (17. izdanje)

Figueroa, Robert Melchior. "Ecotourism: Robert Melchior Figueroa." Keywords for Environmental Studies.([2016]) .

MLA način citiranja (8. izdanje)

Figueroa, Robert Melchior. "Ecotourism: Robert Melchior Figueroa." Keywords for Environmental Studies.([2016]), .