Gaya APA

Sipiera, Paul P. (1997). Black Holes : Paul P Sipiera . New York: Children\'s Press.

Gaya Chicago

Sipiera, Paul P. Black Holes : Paul P Sipiera. New York: Children\'s Press, 1997. English Corner.

Gaya MLA

Sipiera, Paul P. Black Holes : Paul P Sipiera. New York: Children\'s Press, 1997. English Corner.

Gaya Turabian

Sipiera, Paul P. Black Holes : Paul P Sipiera. New York: Children\'s Press, 1997. English Corner.