What has the author Henry Sirgo written?

Answer 1

Henry Sirgo has written:

'Establishment of environmentalism on the U.S. political agenda in the second half of the twentieth century' -- subject(s): Ecologists, Environmentalism, Political activity, Political aspects of Environmentalism, Political ecology

Answer 2

Leo G. Henry has written:

'The roots of faith' -- subject(s): Catholic, Textbooks for youth, Religious education

Answer 3

There is no notable author named Henry Sirgo. It's possible that this author may not be widely recognized or may not exist.