Gaya APA
ECO, Umberto. (2022).
On Signs (cet.1).
Yogyakarta:
IRCiSoD.
Gaya Chicago
ECO, Umberto.
On Signs.
cet.1
Yogyakarta:
IRCiSoD,
2022.
Buku Teks.
Gaya MLA
ECO, Umberto.
On Signs.
cet.1
Yogyakarta:
IRCiSoD,
2022.
Buku Teks.
Gaya Turabian
ECO, Umberto.
On Signs.
cet.1
Yogyakarta:
IRCiSoD,
2022.
Buku Teks.