Nitrogen and phosphorus/ ; By Knapp, Brian J.

Copyright:1996
ISBN:0717275728 (se
LCCN: 95082222 /AC
Publisher:Danbury, Conn. : Grolier Educational,
Physical Details: 15 v. : ill. (chiefly col.) ; 26 cm.
Notes:Includes index.
Record No.:44993
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