Gaya APA
Hilbert, D.
(1990).
Foundations of geometry (Grundlagen der Geometrie)
(
2nd ed)
.
Lasalle, IL:
Open Court.
Gaya MLA
Hilbert, David.
"Foundations of geometry (Grundlagen der Geometrie)".
2nd ed
Lasalle, IL:
Open Court,
1990.
Text.