* Universe: The Definitive Visual Dictionary, Robert Dinwiddie and others., DK Adult Publishing, ( 2005 ), pg.
* Universe: The Definitive Visual Dictionary, Robert Dinwiddie et al., DK Adult Publishing, ( 2005 ), pg.
0.023 seconds.
* Universe: The Definitive Visual Dictionary, Robert Dinwiddie and others., DK Adult Publishing, ( 2005 ), pg.
* Universe: The Definitive Visual Dictionary, Robert Dinwiddie et al., DK Adult Publishing, ( 2005 ), pg.
0.023 seconds.