APA-viite

Covarrubias - Tovar, N. (2019). A LOOK AT THE STORY OF HUMANITY AND THE PANORAMA OF SUSTAINABLE DEVELOPMENT AT THE DAWN OF THE THIRD MILLENNIUM.

Chicago-tyylinen lähdeviittaus

Covarrubias - Tovar, Natividad. A LOOK AT THE STORY OF HUMANITY AND THE PANORAMA OF SUSTAINABLE DEVELOPMENT AT THE DAWN OF THE THIRD MILLENNIUM. 2019.

MLA-viite

Covarrubias - Tovar, Natividad. A LOOK AT THE STORY OF HUMANITY AND THE PANORAMA OF SUSTAINABLE DEVELOPMENT AT THE DAWN OF THE THIRD MILLENNIUM. 2019.

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