Merrill, Gilbert R. Cotton opening and picking / Gilbert R. Merrill. - Rhode Island : GRM Associates, 1960. - 102 p. : ill. ; 22 cm. Includes index. ISBN: (pbk.) Subjects--Topical Terms: Textile engineering. LC Class. No.: TA4591 / 6.49 1912 Dewey Class. No.: 677.21 / MER