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Richard Duhrkopf
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Journal Articles
The American Biology Teacher (1997) 59 (1): 58.
Published: 01 January 1997
Journal Articles
The American Biology Teacher (1994) 56 (5): 309–310.
Published: 01 May 1994
Journal Articles
The American Biology Teacher (1993) 55 (8): 502.
Published: 01 November 1993
Journal Articles
The American Biology Teacher (1993) 55 (6): 376–377.
Published: 01 September 1993
Journal Articles
The American Biology Teacher (1993) 55 (4): 251–252.
Published: 01 April 1993
Journal Articles
The American Biology Teacher (1993) 55 (2): 123–124.
Published: 01 February 1993
Journal Articles
The American Biology Teacher (1993) 55 (1): 57–58.
Published: 01 January 1993
Journal Articles
The American Biology Teacher (1992) 54 (7): 443–444.
Published: 01 October 1992
Journal Articles
The American Biology Teacher (1992) 54 (6): 379–380.
Published: 01 September 1992
Journal Articles
The American Biology Teacher (1992) 54 (2): 123–124.
Published: 01 February 1992
Journal Articles
The American Biology Teacher (1992) 54 (1): 56–57.
Published: 01 January 1992
Journal Articles
The American Biology Teacher (1991) 53 (7): 442–443.
Published: 01 October 1991
Journal Articles
The American Biology Teacher (1991) 53 (1): 48–53.
Published: 01 January 1991
Journal Articles
The American Biology Teacher (1990) 52 (8): 511–513.
Published: 01 November 1990
Journal Articles
The American Biology Teacher (1990) 52 (7): 436–438.
Published: 01 October 1990
Journal Articles
The American Biology Teacher (1990) 52 (6): 384.
Published: 01 September 1990
Journal Articles
The American Biology Teacher (1990) 52 (5): 310–312.
Published: 01 May 1990
Journal Articles
The American Biology Teacher (1990) 52 (4): 249–250.
Published: 01 April 1990
Journal Articles
The American Biology Teacher (1990) 52 (3): 185–186.
Published: 01 March 1990
Journal Articles
The American Biology Teacher (1990) 52 (2): 121–122.
Published: 01 February 1990