Heilbroner, R. L. (1975). An inquiry into the human prospect : with "Second thoughts" and "What has posterity ever done for me?" / Robert L. Heilbroner: With "Second thoughts" and "What has posterity ever done for me?". Norton.
Chicago Style (17th ed.) CitationHeilbroner, Robert L. An Inquiry into the Human Prospect : With "Second Thoughts" and "What Has Posterity Ever Done for Me?" / Robert L. Heilbroner: With "Second Thoughts" and "What Has Posterity Ever Done for Me?". New York: Norton, 1975.
MLA (9th ed.) CitationHeilbroner, Robert L. An Inquiry into the Human Prospect : With "Second Thoughts" and "What Has Posterity Ever Done for Me?" / Robert L. Heilbroner: With "Second Thoughts" and "What Has Posterity Ever Done for Me?". Norton, 1975.
Warning: These citations may not always be 100% accurate.