APA

Penny B., Malinowska K. T., . (1974). Communicating in Polish. Washington: Dept. of State, Foreign Service Institute : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Chicago

Penny Bernard, Malinowska Krystyna T, . 1974. Communicating in Polish. Washington: Dept. of State, Foreign Service Institute : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Harvard

Penny B., Malinowska K. T., . (1974). Communicating in Polish. Washington: Dept. of State, Foreign Service Institute : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

MLA

Penny Bernard, Malinowska Krystyna T, . Communicating in Polish. Washington: Dept. of State, Foreign Service Institute : for sale by the Supt. of Docs., U.S. Govt. Print. Off. 1974.