Citazione Stile APA (7a Edizione)

Engstrom, T. W., & Engstrom, T. W. (1984). The Christian leader's 60-second management guide. Word.

Citazione stile Chigago Style (17a edizione)

Engstrom, Ted W., e Theodore Wilhelm Engstrom. The Christian Leader's 60-second Management Guide. Texas: Word, 1984.

Citatione MLA (9a ed.)

Engstrom, Ted W., e Theodore Wilhelm Engstrom. The Christian Leader's 60-second Management Guide. Word, 1984.