Columbia subject headings:
Environmental education--Brazil--Case studies.
Environmental education--Mexico--Case studies.
Sustainability--Brazil--Case studies.
Sustainability--Mexico--Case studies.
Harvard subject headings:
Environmental education.
Student aid--Brazil--Uberaba (Minas Gerais)
Sustainability--Mexico.
Sustainability.
Universidade Federal do Triângulo Mineiro.
Urban ecology (Sociology)
Princeton subject headings: