Citace podle APA (7th ed.)

(1969). Steps to spoken english: A graded course for spanish-speaking students. Longman.

Citace podle Chicago (17th ed.)

Steps to Spoken English: A Graded Course for Spanish-speaking Students. London: Longman, 1969.

Citace podle MLA (9th ed.)

Steps to Spoken English: A Graded Course for Spanish-speaking Students. Longman, 1969.

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