APA Style
Hatauruk, Gunawan, Koontz, Harold, Weihrich, Heinz, O\'Donnell, Cryil. ().
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Chicago Style
Hatauruk, Gunawan, Koontz, Harold, Weihrich, Heinz, O\'Donnell, Cryil.
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MLA Style
Hatauruk, Gunawan, Koontz, Harold, Weihrich, Heinz, O\'Donnell, Cryil.
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Turabian Style
Hatauruk, Gunawan, Koontz, Harold, Weihrich, Heinz, O\'Donnell, Cryil.
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