Gaya APA
Harbaugh, J, W.
(1968).
Stratigraphy and geologic time
(
1968)
.
:
USA, WM C Brown Co.Publ.,.
Gaya MLA
Harbaugh, John, W.
"Stratigraphy and geologic time".
1968
:
USA, WM C Brown Co.Publ.,,
1968.
Text.