Escott, J., Hopkins, A., & Potter, J. (2011). San Francisco story. Pearson Education.
Chicago Style (17. basım) AtıfEscott, John, Andy Hopkins, ve Jocelyn Potter. San Francisco Story. Edinburgh: Pearson Education, 2011.
MLA (9th ed.) AtıfEscott, John, et al. San Francisco Story. Pearson Education, 2011.
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