Gaya APA
Desaign of water - resource system / Arthur Maas...et al. (1968).
London:
Macmillan.
Gaya Chicago
Desaign of water - resource system / Arthur Maas...et al.
.
London:
Macmillan,
1968.
.
Gaya MLA
Desaign of water - resource system / Arthur Maas...et al.
.
London:
Macmillan,
1968.
.
Gaya Turabian
Desaign of water - resource system / Arthur Maas...et al.
London:
Macmillan,
1968.
.