Παραπομπή APA

Encyclopaedia of science. (1977). Readers guide to the McGraw Hill encyclopaedia of science and technology. Mc Graw Hill Book company Inc.

Παραπομπή Chicago Style

Encyclopaedia of science. Readers Guide to the McGraw Hill Encyclopaedia of Science and Technology. Mc Graw Hill Book company Inc, 1977.

Παραπομπή MLA

Encyclopaedia of science. Readers Guide to the McGraw Hill Encyclopaedia of Science and Technology. Mc Graw Hill Book company Inc, 1977.