Gaya APA
Botani: principles and problems. (1955).
New York:
Mc Graw Hill.
Gaya Chicago
Botani: principles and problems.
5.
New York:
Mc Graw Hill,
1955.
Buku.
Gaya MLA
Botani: principles and problems.
5.
New York:
Mc Graw Hill,
1955.
Buku.
Gaya Turabian
Botani: principles and problems.
New York:
Mc Graw Hill,
1955.
Buku.