Gaya APA
Bonola, Roberto. (1955).
Non euclidean geometry : a critical and historical study of its development .
USA:
Dover.
Gaya Chicago
Bonola, Roberto.
Non euclidean geometry : a critical and historical study of its development.
USA:
Dover,
1955.
Text.
Gaya MLA
Bonola, Roberto.
Non euclidean geometry : a critical and historical study of its development.
USA:
Dover,
1955.
Text.
Gaya Turabian
Bonola, Roberto.
Non euclidean geometry : a critical and historical study of its development.
USA:
Dover,
1955.
Print.