Gaya APA

Goldstein, J. (1977). Sensible sludge: a new look at wasted natural resource . (4) Organisasi Perusahaan: Teo: .

Gaya MLA

Goldstein, J.. Sensible sludge: a new look at wasted natural resource. (4) Organisasi Perusahaan: Teo: , 1977. Text.