Source Paul Neergaard (Wikipedia)
Source Wikipedia: Paul Panda Farnana
Source Percy Edgar Brown (Wikipedia)
Source Perry Greeley Holden (Wikipedia)
Source Peter Henry Rolfs (Wikipedia)
Source Wikipedia: Pierre Lardinois
Source Pieter Vorster (Wikipedia)
Source Wikipedia: Ranbir Singh Kanwar
Source Raymond Arritt (Wikipedia)
Source Rudolf Mansfeld (Wikipedia)
Source Selig Soskin (Wikipedia)
Source Shmuel Hurwitz (Wikipedia)
Source Sicco Mansholt (Wikipedia)
Source Simon Groot (Wikipedia)
Source Sylvan Wittwer (Wikipedia)
Source Tetteh Quarshie, Wikipedia
Source Theodor Heinrich Engelbrecht (Wikipedia)
Source Encyclopedia.com (The Oxford Companion to British History): Coke, Thomas William, 1st earl of Leicester
Source Wikipedia: Timothy Olurotimi Tayo
Source Tiruvadi Sambasiva Venkataraman - Wikipedia
Source Trofim Lysenko (Wikipedia)
Source Wang Zhen (inventor) - Wikipedia
Source William Farrer (Wikipedia)
Source William Lowrie (Wikipedia)
Source Wikipedia: William Wolfskill
Source Wilson Popenoe (Wikipedia)
Source Winifred Brenchley (Wikipedia)
Source Wofford Benjamin Camp (Wikipedia)
Source Woldemar von Knieriem (Wikipedia)
Source Yacouba Sawadogo (Wikipedia)
Source Yang Xiantong (Wikipedia)
Source Yervant Aghaton (Wikipedia)
Source Yitzhak Elazari Volcani (Wikipedia)
Source Yuan Longping (Wikipedia)
Source Zhores Medvedev (Wikipedia)
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