APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, Symposium on Technology and Economics, & Landau, R. (1991). Technology & economics: Papers commemorating Ralph Landau's service to the National Academy of Engineering. National Academy Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, Symposium on Technology and Economics, ба Ralph Landau. Technology & Economics: Papers Commemorating Ralph Landau's Service to the National Academy of Engineering. Washington, D.C.: National Academy Press, 1991.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, et al. Technology & Economics: Papers Commemorating Ralph Landau's Service to the National Academy of Engineering. National Academy Press, 1991.