The Co-composting of domestic solid and human wastes por Obeng, Letitia A. 1954-

A chemical study of the essential oil from the fruit peeling of Psidium guajava L. por Oliveros-Belardo, Luz, Smith, Roger M., Robinson, Janet M., Albano, Victoria

Obter o texto integral

Sanitation without water por Winblad, Uno

Sanitation without water por Winblad, Uno

Garbage as you like it por Goldstein, Jerome 1931-

Ammonium chloride fertilizer plant por Corpuz, Clarito F.

Municipal composting por Davies, Alfred George

Composting sanitary disposal and reclamation of organic wastes por Gotaas, Harold Benedict 1906-

A complete guide writing por Dunbar, Howard Howard heenter 1903-

The soil and health a study of organic agriculture por Howard, Albert Sir 1873-1947