Columbia subject headings:
Alvarado Torres, Pedro, 1872-1937--Palaces.
Hidalgo del Parral (Mexico)--History.
Palaces--Mexico--Hidalgo del Parral--History.
Palacio Alvarado (Hidalgo del Parral, Mexico)--History.
Harvard subject headings:
Alvarado Torres, Pedro, 1872-1937--Palaces.
Hidalgo del Parral (Mexico)--History.
Palaces--Mexico--Hidalgo del Parral--History.
Palacio Alvarado (Hidalgo del Parral, Mexico)--History.
Princeton subject headings:
Alvarado Torres, Pedro, 1872-1937--Palaces.
Hidalgo del Parral (Mexico)--History.
Palaces--Mexico--Hidalgo del Parral--History.
Palacio Alvarado (Hidalgo del Parral, Mexico)--History.