Gaya APA

Avicenna on the four elements: Earth/Air/Fire/Water. (1999). : .

Gaya Chicago

Avicenna on the four elements: Earth/Air/Fire/Water. . : , 1999. Buku Text.

Gaya MLA

Avicenna on the four elements: Earth/Air/Fire/Water. . : , 1999. Buku Text.

Gaya Turabian

Avicenna on the four elements: Earth/Air/Fire/Water. : , 1999. Buku Text.