APA-referens (7:e uppl.)

Howard, S. (1924). General volume table for chir (Pinus Longifolia): Classified by diameter (and girth) and height. Government of India.

Chicago-referens (17:e uppl.)

Howard, S.H. General Volume Table for Chir (Pinus Longifolia): Classified by Diameter (and Girth) and Height. Calcutta: Government of India, 1924.

MLA-referens (9:e uppl.)

Howard, S.H. General Volume Table for Chir (Pinus Longifolia): Classified by Diameter (and Girth) and Height. Government of India, 1924.