Columbia subject headings:
Kahlo, Frida--Correspondence.
Kahlo, Frida--Portraits.
Muray, Nickolas, 1892-1965.
Harvard subject headings:
Kahlo, Frida--Correspondance.
Kahlo, Frida--Portraits.
Muray, Nickolas, 1892-1965--Correspondance.
Princeton subject headings:
Kahlo, Frida--Correspondence.
Kahlo, Frida--Portraits.
Muray, Nickolas, 1892-1965--Correspondence.
Portraits.