Sacks da Silva, Z. (1965). A concept approach to spanish. Harper Row.
Cita Chicago Style (17a ed.)Sacks da Silva, Zenia. A Concept Approach to Spanish. New York, Estados Unidos: Harper Row, 1965.
Cita MLA (9a ed.)Sacks da Silva, Zenia. A Concept Approach to Spanish. Harper Row, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.