Ceponis, Michael John, 1916- Effect of relative humidity on moisture loss and decay of Eastern lettuce prepackaged in different films [by M. J. Ceponis and J. Kaufman. - Washington] Agricultural Research Service, U.S. Dept. of Agriculture, 1968. - 9 p. illus. 26 cm. Bibliography: p. 8-9. LCCN: agr68000094 Subjects--Topical Terms: Lettuce--Packaging.Lettuce--Packaging. LC Class. No.: S21 / .A76 no. 18 National Agricultural Library Call No.: A280.39 R31A no. 18