TY - BOOK AU - Sauders,David S TI - An Introduction to biological rhythms T2 - Tertiary level biology SN - 0216902266 U1 - 574.191 19 PY - 1977/// CY - Glasgow PB - Blackie and Son Limited KW - Biological rhythms KW - Spines N1 - Includes bibliographical references; ls N2 - Environment Management ER -