APA (7 वां संस्करण) प्रशस्ति पत्र

Hernández Elizondo, R. (2018). Foreign businessmen, commerce and petroleum in Tampico and the Huasteca (1890-1930). Libros UAT.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hernández Elizondo, Roberto. Foreign Businessmen, Commerce and Petroleum in Tampico and the Huasteca (1890-1930). Libros UAT, 2018.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Hernández Elizondo, Roberto. Foreign Businessmen, Commerce and Petroleum in Tampico and the Huasteca (1890-1930). Libros UAT, 2018.

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