Niguidula, J. E., & Villanueva, R. B. An evaluation of the Philippine Virginia Tobacco Administation.
Cita Chicago (17th ed.)Niguidula, Joel E., i Raul B. Villanueva. An Evaluation of the Philippine Virginia Tobacco Administation.
Cita MLA (9th ed.)Niguidula, Joel E., i Raul B. Villanueva. An Evaluation of the Philippine Virginia Tobacco Administation.
Atenció: Aquestes cites poden no estar 100% correctes.