APA

MacNeill C. D., . (1964). Skippers of the genus Hesperia in western north America with special reference to California (Lepidoptera. California: National Geographic Society.

Chicago

MacNeill C Don, . 1964. Skippers of the genus Hesperia in western north America with special reference to California (Lepidoptera. California: National Geographic Society.

Harvard

MacNeill C. D., . (1964). Skippers of the genus Hesperia in western north America with special reference to California (Lepidoptera. California: National Geographic Society.

MLA

MacNeill C Don, . Skippers of the genus Hesperia in western north America with special reference to California (Lepidoptera. California: National Geographic Society. 1964.