APA Style
Penfold, R, A.
(1981).
An Introduction to radio DXing / R. A. Penfold
(
1)
.
London:
Bernard Babani.
MLA Style
Penfold, R., A..
"An Introduction to radio DXing / R. A. Penfold".
1
London:
Bernard Babani,
1981.
Textbook ห้องสมุดทั่วไป.