TY - BOOK ID - 126807237 TI - Malthus PY - 1979 SN - 0674544250 9780674544253 PB - Cambridge, Mass.: Harvard university press, DB - UniCat KW - Demographers KW - Economists KW - Malthus, Thomas Robert, - 1766-1834 UR - https://www.unicat.be/uniCat?func=search&query=sysid:126807237 AB - ER -