Παραπομπή σε μορφή APA (7η εκδ.)
Fotos, J. T., & Shreve, R. N. (1949). Advanced Readings in chemical and technical German: From practical reference books <Ullmann, Houben, Meyer u. Jacobson...>. With a summ. of reading difficulties, a frequency vocabulary list and notes. Wiley.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Fotos, John Theodore, και Randolph Norris Shreve. Advanced Readings in Chemical and Technical German: From Practical Reference Books <Ullmann, Houben, Meyer U. Jacobson...>. With a Summ. of Reading Difficulties, a Frequency Vocabulary List and Notes. New York: Wiley, 1949.
Παραπομπή σε μορφή MLA (9th εκδ.)
Fotos, John Theodore, και Randolph Norris Shreve. Advanced Readings in Chemical and Technical German: From Practical Reference Books <Ullmann, Houben, Meyer U. Jacobson...>. With a Summ. of Reading Difficulties, a Frequency Vocabulary List and Notes. Wiley, 1949.
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