APA (7th ed.) Citation

Samy Emara, Tsutomu Masujima, Walaa Zarad, Maha Kamal, & Ramzia EL-Bagary. (2013). On-line coupling of derivatization with pre-concentration to determine trace levels of methotrexate. Elsevier.

Chicago Style (17th ed.) Citation

Samy Emara, Tsutomu Masujima, Walaa Zarad, Maha Kamal, and Ramzia EL-Bagary. On-line Coupling of Derivatization with Pre-concentration to Determine Trace Levels of Methotrexate. Elsevier, 2013.

MLA (9th ed.) Citation

Samy Emara, et al. On-line Coupling of Derivatization with Pre-concentration to Determine Trace Levels of Methotrexate. Elsevier, 2013.

Warning: These citations may not always be 100% accurate.