History and Systems of Psychology by William S. Sahakian (047074975X 9780470749753 0-470-74975-X)
Ideas of the Theory of Relativity: General Implications from Physics to Problems of Society by Mendel Sachs (047074832X 9780470748329 0-470-74832-X)
History and Systems of Psychology by William S. Sahakian (0470749776 9780470749777 0-470-74977-6)
Ultrasonic Communication by Animals by David Pye, Gillian Sales (0470749857 9780470749852 0-470-74985-7)
Floors and Floor Maintenance by W.L. Salter (047074992X 9780470749920 0-470-74992-X)
