TURQUETTE, Atwell R.. Max Black. Abstract and abstraction. Encyclopaedia Britannica, Encyclopaedia Britannica, Inc., Chicago-London-Toronto1956, Vol. 1, pp. 67–68; also Max Black. Abstract and abstraction. Encyclopaedia Britannica, Encyclopaedia Britannica, Inc., Chicago-London-Toronto 1957, Vol. 1, pp. 67–68.. Journal of Symbolic Logic, 1958-03, roč. 23, čís. 1, s. 22–29. Dostupné online [cit. 2020-03-13]. ISSN0022-4812. DOI: 10.2307/2964454.
Chisholm, Hugh, (22 Feb. 1866–29 Sept. 1924), Editor of the Encyclopædia Britannica (10th, 11th and 12th editions). [s.l.] : Oxford University Press, 2007-12-01. Dostupné online.
GÖKER, Parisa; ERDOĞAN, Elmas. The Restitution and Design Principles of Beylerbeyi Palace Gardens, Istanbul. Journal of History Culture and Art Research, 2018-09-30, roč. 7, čís. 3, s. 60. Dostupné online [cit. 2020-03-13]. ISSN2147-0626. DOI: 10.7596/taksad.v7i3.1465.
Chisholm, Hugh, (22 Feb. 1866–29 Sept. 1924), Editor of the Encyclopædia Britannica (10th, 11th and 12th editions). [s.l.] : Oxford University Press, 2007-12-01. Dostupné online.
TURQUETTE, Atwell R.. Max Black. Abstract and abstraction. Encyclopaedia Britannica, Encyclopaedia Britannica, Inc., Chicago-London-Toronto1956, Vol. 1, pp. 67–68; also Max Black. Abstract and abstraction. Encyclopaedia Britannica, Encyclopaedia Britannica, Inc., Chicago-London-Toronto 1957, Vol. 1, pp. 67–68.. Journal of Symbolic Logic, 1958-03, roč. 23, čís. 1, s. 22–29. Dostupné online [cit. 2020-03-13]. ISSN0022-4812. DOI: 10.2307/2964454.
GÖKER, Parisa; ERDOĞAN, Elmas. The Restitution and Design Principles of Beylerbeyi Palace Gardens, Istanbul. Journal of History Culture and Art Research, 2018-09-30, roč. 7, čís. 3, s. 60. Dostupné online [cit. 2020-03-13]. ISSN2147-0626. DOI: 10.7596/taksad.v7i3.1465.