توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Yhland, E. (1961). Contributions to the dynamics of flexible strings, with particular attention to the steady rotary motion of the elastic string. Chalmers University Books.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Yhland, Erland. Contributions to the Dynamics of Flexible Strings, with Particular Attention to the Steady Rotary Motion of the Elastic String. Göteborg: Chalmers University Books, 1961.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Yhland, Erland. Contributions to the Dynamics of Flexible Strings, with Particular Attention to the Steady Rotary Motion of the Elastic String. Chalmers University Books, 1961.