ID:DA0501181X
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Roy Richards
Simon & Schuster c1990
Available at 1 libraries
Simon & Schuster c19890
Roy Richards, Margaret Collis, Doug Kincaid
Macdonald Educational 1985 Learning through science
Science 5/13 ; [chief author, Roy Richards]
Published for the Schools Council by Macdonald Educational 1976, c1972 4th impression with amendments
Available at 3 libraries
Macdonald educational for the Schools Councils 1974, c1972 3rd impression with amendments
Available at 10 libraries
Macdonald educational for the Schools Councils 1972
Science 5/13 Project ; [chief author, Roy Richards]
Macdonald Educational for the Schools Council 1972