(1984). Poems of science. Penguin Books.
Chicago Style (17. basım) AtıfPoems of Science. New York: Penguin Books, 1984.
MLA (9th ed.) AtıfPoems of Science. Penguin Books, 1984.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
(1984). Poems of science. Penguin Books.
Chicago Style (17. basım) AtıfPoems of Science. New York: Penguin Books, 1984.
MLA (9th ed.) AtıfPoems of Science. Penguin Books, 1984.