Gaya APA
The Soil and the Microbe. (1950).
New York:
John Wiley&Sons.
Gaya Chicago
The Soil and the Microbe.
.
New York:
John Wiley&Sons,
1950.
Buku.
Gaya MLA
The Soil and the Microbe.
.
New York:
John Wiley&Sons,
1950.
Buku.
Gaya Turabian
The Soil and the Microbe.
New York:
John Wiley&Sons,
1950.
Buku.