Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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

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