Gaya APA

Mengenal Alam Hewan. (1978). Nugraha: ISS.

Gaya Chicago

Mengenal Alam Hewan. . Nugraha: ISS, 1978. Text.

Gaya MLA

Mengenal Alam Hewan. . Nugraha: ISS, 1978. Text.

Gaya Turabian

Mengenal Alam Hewan. Nugraha: ISS, 1978. Print.