APA-referens (7:e uppl.)

Ullauri, N., Arévalo, C., & Romero, L. (2018). Situational analysis of community tourism in the province of Azuay.

Chicago-referens (17:e uppl.)

Ullauri, Narcisa, Coralía Arévalo, och Lucía Romero. Situational Analysis of Community Tourism in the Province of Azuay. 2018.

MLA-referens (9:e uppl.)

Ullauri, Narcisa, et al. Situational Analysis of Community Tourism in the Province of Azuay. 2018.