TY - BOOK ID - 146352134 TI - Elements of political geography AU - Van Valkenburg, Samuel AU - Erickson, Franklin C. PY - 1939 PB - New York, NY : Prentice-Hall, DB - UniCat KW - Geographie politique UR - https://www.unicat.be/uniCat?func=search&query=sysid:146352134 AB - ER -