Eckersley, C. E., Salisbury, C., Sharrocks, B., & Wood, P. (1958). Essential English for foreign students (Rev. ed.). Państwowe Wydawnictwo Naukowe.
Citazione stile Chigago Style (17a edizione)Eckersley, C. E., Charles Salisbury, Burgess Sharrocks, e Porteous Wood. Essential English for Foreign Students. Rev. ed. Warszawa: Państwowe Wydawnictwo Naukowe, 1958.
Citatione MLA (9a ed.)Eckersley, C. E., et al. Essential English for Foreign Students. Rev. ed. Państwowe Wydawnictwo Naukowe, 1958.
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