MAGNESIUM CARBONATE, #0.6 pr ao (W. J.) Research Laboratory, Richmond. . Permanence/durability of the book—III; spray deacidifi- +3 cation. Richmond, 1964.
62 p. illus. 24cm. (Jts Publication no. 8) Bibliography : p. 61.
1. Paper—Testing. 2. Magnesium carbonate. Lt Title. wo. Title: Spray deacidification. (Series) 2247.B3 no. 3 @ 676.27 64-56849
Library of Congress 2)