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توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Semmelmeyer, M., & Bolander, D. O. (1972). Practical English. A two volume course and reference set containing 27 self-graded units on grammar, correct usage, and punctuation. Career Institute.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Semmelmeyer, Madeline, و Donald O. Bolander. Practical English. A Two Volume Course and Reference Set Containing 27 Self-graded Units on Grammar, Correct Usage, and Punctuation. Mundelein, Ill.: Career Institute, 1972.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Semmelmeyer, Madeline, و Donald O. Bolander. Practical English. A Two Volume Course and Reference Set Containing 27 Self-graded Units on Grammar, Correct Usage, and Punctuation. Career Institute, 1972.