Smithsonian Institution. Office of the Secretary & Packard, A. S. (1873). Directions for collecting and preserving insects. [publisher not identified].
Chicago Style (17th ed.) CitationSmithsonian Institution. Office of the Secretary and A. S. Packard. Directions for Collecting and Preserving Insects. Washington, D.C.: [publisher not identified], 1873.
MLA (9th ed.) CitationSmithsonian Institution. Office of the Secretary and A. S. Packard. Directions for Collecting and Preserving Insects. [publisher not identified], 1873.
Warning: These citations may not always be 100% accurate.