Cita APA (7a ed.)

I. C. S. reference library: A series of textbooks prepared for the students of the international correspondence schools and containing in permanent form the instruction papers, examination questions, and keys used in their various courses. German-english lexicon. English-german lexicon.

Cita Chicago Style (17a ed.)

I. C. S. Reference Library: A Series of Textbooks Prepared for the Students of the International Correspondence Schools and Containing in Permanent Form the Instruction Papers, Examination Questions, and Keys Used in Their Various Courses. German-english Lexicon. English-german Lexicon. Scranton.

Cita MLA (8a ed.)

I. C. S. Reference Library: A Series of Textbooks Prepared for the Students of the International Correspondence Schools and Containing in Permanent Form the Instruction Papers, Examination Questions, and Keys Used in Their Various Courses. German-english Lexicon. English-german Lexicon.