De Guzman, M. O. Model letters for all occasions, and Sentence stress and emphasis. G.O.T. Publishers.
芝加哥风格引文De Guzman, Maria Odulio. Model Letters for All Occasions, and Sentence Stress and Emphasis. [Manila]: G.O.T. Publishers.
MLA引文De Guzman, Maria Odulio. Model Letters for All Occasions, and Sentence Stress and Emphasis. G.O.T. Publishers.
警告：这些引文格式不一定是100％准确.