Headway Intermediate Fourth Edition. Student's Book and Workbook (2 volumes)John SoarsEsauritoAvvisami
Camridge English Advanced Result. Student's Book. Workbook Resource Pack with KeyMary StephensEsauritoAvvisami
Bemerkungen über die Grundlagen der Mathematik. Remarks on the Foundations of MathematicsG. E. M. AnscombeEsauritoAvvisami