UNEP    E58         Environmental guidelines for the direct reduction route to steel making / UNEP Industry & Environment Office. - Paris : [s. n.], 1983. - VI, 12 p. - (UNEP - Industry & Environment Guidelines Series). - Bibliogr.: p. 12. - ISBN 92-807-1071-0 : Без ценыРУБ: 873.15.15.29.33 Экземпляры: БЭ/кх (1)