Tiersky, E., & Tiersky, M. (1990). The USA: Customs and institutions. A survey of american culture and traditions. An advanced reader for ESL and EFL students (3a. ed.). Prentice Hall Regents.
Dyfyniad Arddull ChicagoTiersky, Ethel, and Martin Tiersky. The USA: Customs and Institutions. A Survey of American Culture and Traditions. An Advanced Reader for ESL and EFL Students. 3a. ed. Englewood Cliffs: Prentice Hall Regents, 1990.
Dyfyniad MLATiersky, Ethel, and Martin Tiersky. The USA: Customs and Institutions. A Survey of American Culture and Traditions. An Advanced Reader for ESL and EFL Students. 3a. ed. Prentice Hall Regents, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.