First edition - 1930 - of the ILO Encyclopaedia
Readers will be interested to read the whole of the 1st edition of the Encyclopaedia, including the preface that was published in 1930. The Encyclopaedia is available in scanned (PDF) format from the ILO Library at:
http://www.ilo.org/public/libdoc/ilo/1930/30B09_1_engl_V.1.pdf
http://www.ilo.org/public/libdoc/ilo/1930/30B09_1_engl_V.2.pdf