by Weiner, Ruth F | Matthews, Robin A | Vesilind, P. Aarne. Environmental engineering | ProQuest (Firm).
by Peirce, J. Jeffrey | Weiner, Ruth F | Vesilind, P. Aarne | Vesilind, P. Aarne. Environmental pollution and control | ProQuest (Firm).
by Vesilind, P. Aarne | ProQuest (Firm).