Unesco. (1988). Spines thesaurus: A controlled and structured vocabulary for information processing in the field of science and technolog.
Dyfyniad Arddull ChicagoUnesco. Spines Thesaurus: A Controlled and Structured Vocabulary for Information Processing in the Field of Science and Technolog. Unesco, 1988.
Dyfyniad MLAUnesco. Spines Thesaurus: A Controlled and Structured Vocabulary for Information Processing in the Field of Science and Technolog. 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.