John E. Borland. Modern teaching in the senior school: Nature study science. George Newnes.
Chicago Style (17th ed.) ZitazioaJohn E. Borland. Modern Teaching in the Senior School: Nature Study Science. London: George Newnes.
MLA (9th ed.) ZitazioaJohn E. Borland. Modern Teaching in the Senior School: Nature Study Science. George Newnes.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.