TY - BOOK AU - Penna,Anthony N. TI - The human footprint: a global environmental history SN - 9781405187718 (pbk.) PY - 2010/// CY - Malden, MA PB - Wiley-Blackwell KW - Human ecology KW - History KW - Ecology KW - Climatic changes KW - Natural history N1 - Includes bibliographical references (p. [306]-330) and index ER -