Gaya APA

Fleischman, S., Sis, P. (1997). The 13th Floor: A Ghost Story . New York: Bantam Doubleday Dell Books For Young Readers.

Gaya MLA

Fleischman, Sid., Sis, Peter. "The 13th Floor: A Ghost Story". New York: Bantam Doubleday Dell Books For Young Readers, 1997. Text.