Petrochemical industry series
United Nations
United Nations 1971 Petrochemical industry series monograph no. 6
所蔵館7館
United Nations 1969 Petrochemical industry series Monograph ; no. 1
所蔵館3館
United Nations 1969 Petrochemical industry series Monograph ; no. 2
United Nations 1969 Petrochemical industry series Monograph ; no. 4
所蔵館8館
United Nations 1969 Petrochemical industry series monograph ; no. 5
所蔵館6館
United Nations 1969 Petrochemical industry series monograph no. 3