Gaya APA
Nelsen, Roger B., College, Clark, Lewis. ().
Proof without words : each but two triangular numbers is a sum of three triangular numbers .
:
.
Gaya Chicago
Nelsen, Roger B., College, Clark, Lewis.
Proof without words : each but two triangular numbers is a sum of three triangular numbers.
:
,
.
Text.
Gaya MLA
Nelsen, Roger B., College, Clark, Lewis.
Proof without words : each but two triangular numbers is a sum of three triangular numbers.
:
,
.
Text.
Gaya Turabian
Nelsen, Roger B., College, Clark, Lewis.
Proof without words : each but two triangular numbers is a sum of three triangular numbers.
:
,
.
Print.