एपीए उद्धरण

Nair, R., Weatherall, A., Perks, M., & Mencuccini, M. (2014). Stem injection of (15)N–NH(4)NO(3) into mature Sitka spruce (Picea sitchensis). Tree Physiol.

शिकागो स्टाइल उद्धरण

Nair, Richard, Andrew Weatherall, Mike Perks, और Maurizio Mencuccini. "Stem Injection of (15)N–NH(4)NO(3) Into Mature Sitka Spruce (Picea Sitchensis)." Tree Physiol 2014.

एमएलए उद्धरण

Nair, Richard, Andrew Weatherall, Mike Perks, और Maurizio Mencuccini. "Stem Injection of (15)N–NH(4)NO(3) Into Mature Sitka Spruce (Picea Sitchensis)." Tree Physiol 2014.