↑ Palmer, Joy; Cooper, David Edward; Corcoran, Peter Blaze (2001). Palmer, Joy; Cooper, David Edward; Corcoran, Peter Blaze (บ.ก.). Fifty key thinkers on the environment. Routledge key guides. Routledge. p. 70. ISBN9780415146999. สืบค้นเมื่อ 2009-11-06. [...] Malthus was destined to be a clergyman. Educated [...] at Jesus College, Cambridge, [...] he took holy orders in 1788 [...] More than one of |pages= และ |page= specified (help)
↑ Several sources give Malthus's date of death as 29 December 1834. See Meyers Konversationslexikon (Leipzig, 4th edition, 1885-1892), "Biography" by Nigel Malthus (the memorial transcription reproduced in this article). But the 1911 Britannica gives 23 December 1834.
↑ Petersen, William. 1979. Malthus. Heinemann, London. 2nd ed 1999.
↑ Malthus used his middle name Robert, though work after his lifetime often refers to him as Thomas Malthus.
↑ Geoffrey Gilbert, introduction to Malthus T.R. 1798. An essay on the principle of population. Oxford World's Classics reprint. viii in Oxford World's Classics reprint.
