APA aipamena

Pujol, R., & Solano, E. (2011). SOLID WASTE RECYCLIN IN COSTA RICA: BALANCE AND PERSPECTIVES.

Chicago Style aipamena

Pujol, Rosendo, y Eric Solano. SOLID WASTE RECYCLIN IN COSTA RICA: BALANCE AND PERSPECTIVES. 2011.

MLA aipamena

Pujol, Rosendo, y Eric Solano. SOLID WASTE RECYCLIN IN COSTA RICA: BALANCE AND PERSPECTIVES. 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.