TY - BOOK ID - 140421783 TI - Economics of approval plans : proceedings AU - Spyers-Duran, Peter AU - Gore, Daniel PY - 1972 PB - Westport, Conn. Greenwood Press DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:140421783 AB - ER -