Heathfield, R. (1828). Report on the affairs of the United Mexican Mining Association made to the court of directors. [s.n.].
Chicago-Zitierstil (17. Ausg.)Heathfield, Richard. Report on the Affairs of the United Mexican Mining Association Made to the Court of Directors. S.l: [s.n.], 1828.
MLA-Zitierstil (9. Ausg.)Heathfield, Richard. Report on the Affairs of the United Mexican Mining Association Made to the Court of Directors. [s.n.], 1828.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.