TY - BOOK T1 - Recognition of air pollution injury to vegetation a pictorial atlas. A1 - Jacobson, Jay S. LA - English PP - Pennsylvania PB - Air Pollution Control Association YR - 1970 UL - https://tuklas.up.edu.ph/Record/UP-99796217607877432 CN - TD881 A46 1970 no.1 KW - Air pollution. ER -