Gaya APA

Witting, Jr. Chris J. (1998). Twenty-one day countdown to success : take charge of your life in less than a month . New York: Career Press.

Gaya Chicago

Witting, Jr. Chris J. Twenty-one day countdown to success : take charge of your life in less than a month. New York: Career Press, 1998. Buku.

Gaya MLA

Witting, Jr. Chris J. Twenty-one day countdown to success : take charge of your life in less than a month. New York: Career Press, 1998. Buku.

Gaya Turabian

Witting, Jr. Chris J. Twenty-one day countdown to success : take charge of your life in less than a month. New York: Career Press, 1998. Buku.