APA:
Ekwere, A. S., Edet, A., Ukpong, A. J. (2011). Hydrochemistry of the near shore marine bay, Calabar river (South-eastern, Nigeria).
RMZ-materials and geoenvironment, letnik 58, številka 4, str. 421-436.
URN:NBN:SI:DOC-XY9LNHAZ from http://www.dlib.si
MLA:
Ekwere, A. S., Edet, A., Ukpong, A. J.. "Hydrochemistry of the near shore marine bay, Calabar river (South-eastern, Nigeria)."
RMZ-materials and geoenvironment letnik 58. številka 4 (2011) str. 421-436.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-XY9LNHAZ>