By Phyllis Root, H. Craig, Root Phyllis, Craig Helen
By Hillis, David M., Sadava, David, Heller, H. Craig, Price, Mary V.
By Purves, William K., Orians, Gordon H., Heller, H. Craig, Sadava, David, Pickett-Heaps, Jeremy
By Margaret Mahy, H. Craig
By Nigel Gray, H. Craig
