Columbia subject headings:
Architectural drawing--History--20th century.
Architectural rendering--History--20th century.
Cruz, Alberto (Cruz Covarrubias)--Notebooks, sketchbooks, etc.
Harvard subject headings:
Architectural drawing--History--20th century.
Architectural rendering--History--20th century.
Cruz, Alberto (Cruz Covarrubias)--Notebooks, sketchbooks, etc.
Princeton subject headings:
Architectural drawing--History--20th century.
Architectural rendering--History--20th century.
Cruz, Alberto (Cruz Covarrubias), 1917-2013--Notebooks, sketchbooks, etc.