(1974). Almanaque Americano de Ross con oraculo [microform] 1st- 1891-. Photoduplication Service,University of the Philippines Library.
Citace podle Chicago (17th ed.)Almanaque Americano De Ross Con Oraculo [microform] 1st- 1891-. Quezon City: Photoduplication Service,University of the Philippines Library, 1974.
Citace podle MLA (9th ed.)Almanaque Americano De Ross Con Oraculo [microform] 1st- 1891-. Photoduplication Service,University of the Philippines Library, 1974.
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