TY - BOOK ID - 136857668 TI - An Introduction to APEX AU - ICF International (Firm) AU - United States. PY - 2017 PB - Durham, NC : ICF, DB - UniCat KW - Air KW - Air quality KW - Pollution KW - Mathematical models. KW - Measurement. UR - https://www.unicat.be/uniCat?func=search&query=sysid:136857668 AB - ER -