The Personalized system of instructionJ. Gilmour Sherman, Robert S. Ruskin, George B. Semb · First published 1974Open the Tome
The personalized system of instruction in higher educationRobert S. Ruskin · First published 1974Open the Tome
Evaluation of an undergraduate course involving student placement in institutional settingsRobert S. Ruskin · First published 1972Open the Tome
