Gaya APA
Johnston, C.L.. (1978).
Plane trigonometry : a new approach .
Englewood Cliffs, NJ:
Prentice Hall.
Gaya Chicago
Johnston, C.L..
Plane trigonometry : a new approach.
Englewood Cliffs, NJ:
Prentice Hall,
1978.
Text.
Gaya MLA
Johnston, C.L..
Plane trigonometry : a new approach.
Englewood Cliffs, NJ:
Prentice Hall,
1978.
Text.
Gaya Turabian
Johnston, C.L..
Plane trigonometry : a new approach.
Englewood Cliffs, NJ:
Prentice Hall,
1978.
Print.