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Authors
- Radel, Laura, author2
- Ramos, Christal, author1
- Randall, Francis E.1
- Rasmussen, Petra W., author1
- Rauch, John H. (John Henry), 1828-18941
- Reef, Grace, author1
- Richardson, John, (Of RTI International), author1
- Richardson, John, author1
- Richardson, Joshua E., author1
- Richgels, Jocelyn, author1
- Richwine, Chelsea J., author6
- Richwine, Chelsea, author2
- Rittenhouse, Diane, author1
- Roberts, Lester B., author3
- Robillard, Lara, author1
- Rochford, Hanna, author1
- Rochford, Hannah, author3
- Rogers, Samuel.1
- Roper, William, author1
- Rosen, Sophie, author1