Lefkowitz, Natalie, 1954- From process to product : beginning-intermediate writing skills for students of ESL / Natalie Lefkowitz ; illustrated by Lori Weisenfeld. - Englewood Cliffs, N.J. : Prentice-Hall, c1987. - xxi, 179 p. : ill. ISBN: 0133316955 (pbk.) LCCN: 90074151 Subjects--Topical Terms: English language--Textbooks for foreign speakers