Nikola Potkonjak has written:
'Sistem obrazovanja i vaspitanja u Jugoslaviji' -- subject(s): School management and organization
'Klasshmeria e edukimit' -- subject(s): Communist education, Educational sociology, Social classes
Nikola Antic has written: 'Poslednji dud'
Nikola Zorich has written: 'Good-bye, my son'
Nikola Stepanovich Gumilev has written: 'Koster'
Nikola Vasil'evich Solov'ev has written: 'Istoriia odno zhizni'
Nikola Nachov has written: 'Kalofer v minaloto' -- subject(s): History
Nikola Gigov has written: 'Gela' -- subject(s): History 'Rodopski chan'
Nikola Aleksiev has written: 'Esperanto 100 godini' -- subject(s): Esperanto
Nicolae Milescu has written: 'Nikola Spafari'
Nikola Uzunov has written: 'Stopanstvoto na Republika Makedonija, 1945-1990' -- subject(s): Economic conditions
Nikola Kondarev has written: 'Narodnite chitalishta v Bulgaria' -- subject(s): Bulgaria, History, Public libraries
Nikola J. Ostrup has written: 'Efficacy and safety of intravenous phosphate replacement in critically ill patients'
Nikola Alekseevich Nekrasov has written: 'Polnoe sobranie stikhotvoreni N.A. Nekrasova v dvukh tomakh' 'Polnoe sobranie stikhotvoreni'