APA (7th ed.) Citation

Bonkalo, E. (1999). Why do we get old?: How can senility be wared off? (Enl., rev. 3. ed.). Kalobon.

Chicago Style (17th ed.) Citation

Bonkalo, Ervin. Why Do We Get Old?: How Can Senility Be Wared off? Enl., rev. 3. ed. Toronto: Kalobon, 1999.

MLA (9th ed.) Citation

Bonkalo, Ervin. Why Do We Get Old?: How Can Senility Be Wared off? Enl., rev. 3. ed. Kalobon, 1999.