APA
Robert H. Heptinstall, . (1980). Laboratory Investigetion. U. S. A: The Willams & Wilkins Company.
Chicago
Robert H. Heptinstall, . 1980. Laboratory Investigetion. U. S. A: The Willams & Wilkins Company.
Harvard
Robert H. Heptinstall, . (1980). Laboratory Investigetion. U. S. A: The Willams & Wilkins Company.
MLA
Robert H. Heptinstall, . Laboratory Investigetion. U. S. A: The Willams & Wilkins Company. 1980.