Gaya APA

GEOFRAPHIC, N. (2009). NATIONAL GEOFRAPHIC : The Tallest Trees Redwoods VOL .216. NO 4. OCTOBER 2009 (VOL .216. NO 4. OCTOBER 2009). WHASINGONG D.C.: NATIONAL GEOFRAPHIC.

Gaya MLA

GEOFRAPHIC, NATIONAL. "NATIONAL GEOFRAPHIC : The Tallest Trees Redwoods VOL .216. NO 4. OCTOBER 2009". VOL .216. NO 4. OCTOBER 2009 WHASINGONG D.C.: NATIONAL GEOFRAPHIC, 2009. Koleksi Khusus.