1
Published 1972 i.e. 1974.
“...APA 2170...”Report Number(s): EPA-R3-73-033 APA 2170
Link to full text
2
by Darnell, Rezneat M.
Published 1976.
“...APA 3143...”Published 1976.
Report Number(s): APA 3143 EPA-600/3-76-045
Link to full text
3
by Schallock, Eldor W.
Published 1974.
“...APA 1922...”Published 1974.
Report Number(s): EPA-660/3-74-008 APA 1922
Link to full textLink to full text
4