APA (7th ed.) Zitazioa

(1988). The presence of the past: Morphic resonance and the habits of nature / Rupert Sheldrake.

Chicago Style (17th ed.) Zitazioa

The Presence of the Past: Morphic Resonance and the Habits of Nature / Rupert Sheldrake. 1988.

MLA (9th ed.) Zitazioa

The Presence of the Past: Morphic Resonance and the Habits of Nature / Rupert Sheldrake. 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.