Used in 2 records
001 - CONTROL NUMBER
control field: 56983
003 - CONTROL NUMBER IDENTIFIER
control field: GY-GeU
005 - DATE AND TIME OF LATEST TRANSACTION
control field: 20120924091317.0
008 - FIXED-LENGTH DATA ELEMENTS
fixed length control field: 120924|||a|||||| | ||| d
040 ## - CATALOGING SOURCE
Original cataloging agency: GY-GeU
Transcribing agency: GY-GeU
150 ## - HEADING--TOPICAL TERM
Topical term or geographic name as entry element: Medical geography
General subdivision: History
670 ## - SOURCE DATA FOUND
Source citation: Work cat.: (GY-GeU): Crosby, Alfred W. 56979, The Columbian exchange: , 1972.