Classification. Class Q: Science.

Classification. Class Q: Science.

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Xehetasun bibliografikoak
Erakunde egilea: United States Library of Congress Classification Division
Formatua: Liburua
Hizkuntza:English
Argitaratua: Washington U. S. Government Printing Office 1954
Edizioa:5th ed., with supplementary pages.
Gaiak:
Classification > Books > Science.