Aitchison, Jean Thesaurus construction: a practical manual / Jean Aitchison, Alan Gilchrist. - 2nd ed. - London : Aslib, 1972. - 173 p. ISBN: 0851420427 Nat. Bib. No.: B72-25682 Subjects--Topical Terms: Thesauri. LC Class. No.: P327 / .A4 Dewey Class. No.: 029.5