TRAXLER A. E., NORTH R. D., . (1966). TECHNIQUES OF GUIDANCE. NEW YORK: HARPER & ROW PUBLISHERS.
TRAXLER ARTHUR E, NORTH ROBERT D, . 1966. TECHNIQUES OF GUIDANCE. NEW YORK: HARPER & ROW PUBLISHERS.
TRAXLER ARTHUR E, NORTH ROBERT D, . TECHNIQUES OF GUIDANCE. NEW YORK: HARPER & ROW PUBLISHERS. 1966.
