Gaya APA
Shuman, J, C., Rottenberg, D. (1998).
The Rhythm of Business: The Key to Building and Running Successful Companies .
United States:
Butterworth-Heinemann.
Gaya MLA
Shuman, Jeffrey, C.., Rottenberg, David.
"The Rhythm of Business: The Key to Building and Running Successful Companies".
United States:
Butterworth-Heinemann,
1998.
Buku.