Columbia subject headings:
Documentary films--Spain--History and criticism.
González de la Riva, Jesús Francisco, marqués de Villa-Alcázar, 1885-1967--Criticism and interpretation.
Harvard subject headings:
Documentary films--Spain--History and criticism.
González de la Riva, Jesús Francisco, marqués de Villa-Alcázar, 1885-1967--Criticism and interpretation.
Motion picture producers and directors--Spain.
Princeton subject headings:
Documentary films--Spain--History and criticism.
Villa Alcázar, Jesús Francisco González de la Riva y Vidiella, marqués de, 1885-1967.