"carr, marilyn . "
economically appropriate technology for developing countrie: s:an annotated bibliography/ marilyn.. carr - 1 ed. - usa : intermediate technology 1976. - ", 123p.; 21 cm."
0 903031 75 2
Z7911 / .C37 1976
economically appropriate technology for developing countrie: s:an annotated bibliography/ marilyn.. carr - 1 ed. - usa : intermediate technology 1976. - ", 123p.; 21 cm."
0 903031 75 2
Z7911 / .C37 1976