Frisch K. C., Reegen S. L., . (1971). Advances in urethane science and technology. V 1. Conn: Technomic.
Frisch K C, Reegen S L, . 1971. Advances in urethane science and technology. V 1. Conn: Technomic.
Frisch K C, Reegen S L, . Advances in urethane science and technology. V 1. Conn: Technomic. 1971.
