<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>27</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Harvey, H. H.</style></author><author><style face="normal" font="default" size="100%">Pierce, R. C.</style></author><author><style face="normal" font="default" size="100%">Dillon, P. J.</style></author><author><style face="normal" font="default" size="100%">Kramer, J. P.</style></author><author><style face="normal" font="default" size="100%">Whelpdale, D. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Acidification in the Canadian aquatic environment : scientific criterion for assessment of the effects of acidic deposition on aquatic ecosystems</style></title></titles><dates><year><style  face="normal" font="default" size="100%">1981</style></year></dates><publisher><style face="normal" font="default" size="100%">National Research Council Canada</style></publisher><pub-location><style face="normal" font="default" size="100%">Ottawa, Ont.</style></pub-location><volume><style face="normal" font="default" size="100%">Report No. 18475</style></volume><pages><style face="normal" font="default" size="100%">369</style></pages><language><style face="normal" font="default" size="100%">en</style></language><custom1><style face="normal" font="default" size="100%">Biology, Oil &amp; Other Non-renewable Fuels </style></custom1><custom4><style face="normal" font="default" size="100%">Science</style></custom4></record></records></xml>