Formas alternativas del nombreMarkham, Robert Sir, bart.
Markham, Robertus Sir
Fuentes consultadas1. WWW VIAF, 08/05/2018 http://viaf.org/viaf/72897342
2. Astronomia Britannica in qua per novam, concinnioremque methodum, hi quinque tractatus traduntur, 1669
3. WWW LC, 22/03/2012 Markham, Robert, Sir