Doff, A., Jones, C., Mitchell, K. Meanings into Words Upper-Intermediate. Sofia: Фондация Отворено о-во, 1992 175 p. 954-520-002-2.
Doff, A., Jones, C., Mitchell, K. Meanings into Words Upper-Intermediate. Sofia: Фондация Отворено о-во, 1992 175 p. 954-520-002-2.
Doff, A., Jones, C., Mitchell, K. (1992) Meanings into Words Upper-Intermediate, Sofia: Фондация Отворено о-во 175 p. 954-520-002-2.
Doff, A., Jones, C., & Mitchell, K. (1992). Meanings into Words Upper-Intermediate. An integrated course for students of English: Teacher's book. Sofia: Фондация Отворено о-во, 175 p.
Doff A, Jones C, Mitchell K. Meanings into Words Upper-Intermediate: An integrated course for students of English: Teacher's book. Sofia: Фондация Отворено о-во; 1992. p. 175 p. ISBN: 954-520-002-2.