Ling, Lee, 1910- Digest of plant quarantine regulations / by Lee Ling - New ed. - Rome : FAO, 1952 - vi, 164 p. ; 23 cm. - Food and Agriculture Organization of the United Nations FAO agricultural development paper ; no. 23 . Library has 2 copies Subjects--Topical Terms: Plant quarantinePlant--DigestsBotany--Digests Dewey Class. No.: 630.82