APA Style
Heimler, Charles H.. (1977).
Focus life on science .
Ohio:
A Bell & Howell Company.
Chicago Style
Heimler, Charles H..
Focus life on science.
Ohio:
A Bell & Howell Company,
1977.
Buku Teks.
MLA Style
Heimler, Charles H..
Focus life on science.
Ohio:
A Bell & Howell Company,
1977.
Buku Teks.
Turabian Style
Heimler, Charles H..
Focus life on science.
Ohio:
A Bell & Howell Company,
1977.
Buku Teks.