20 1 10 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972 Stanley Schindler Additional Author Wallace S. Murray Additional Author J. Harlan Shores Additional Author Lowell A. Martin Additional Author mixed material New York Grolier Inc. 1972